feat(licensing): add resource authz to license endpoints

chore(licensing): regenerate frontend api clients
fix(licensing): advertise api key auth on get active license
2026-08-26 14:30:40 +01:00 · 2026-08-26 16:32:14 +05:30 · 2026-08-26 16:17:32 +05:30 · 2026-08-26 16:11:22 +05:30 · 2026-08-26 16:03:12 +05:30 · 2026-08-26 16:01:50 +05:30
245 changed files with 12098 additions and 5516 deletions
--- a/.claude/agents/playwright-test-generator.md
+++ b/.claude/agents/playwright-test-generator.md
@@ -20,6 +20,16 @@ You are the Playwright Test Generator for the SigNoz frontend. You take a plan w
    await expect(page.getByRole('tab', { name: /alert rules/i })).toBeVisible();
  });
  ```
+- **Extended fixtures:** For features needing complex setup (seeded data, API calls, cleanup), import from domain-specific fixtures that extend `auth`. See [docs/contributing/tests/e2e.md](../../docs/contributing/tests/e2e.md) for the full pattern.
+  - `fixtures/alerts/alert-rules` — worker-scoped rule list + test-scoped rule factory
+  - `fixtures/alerts/alert-history` — extends alert-rules, adds history fixtures (waits on ruler evaluation)
+  ```ts
+  // Alert list tests - need rules, no history
+  import { test, expect } from '../../../fixtures/alerts/alert-rules';
+  
+  // Alert history tests - need evaluated history rows
+  import { test, expect } from '../../../fixtures/alerts/alert-history';
+  ```
 - **Test titles:** `TC-NN <short description>` — matches the planner's IDs.
 - **Self-contained state.** The bootstrap creates a fresh stack with **zero** dashboards / alerts / etc. — never assume pre-existing data. Two cleanup shapes are valid; pick based on the spec size:
  - **Per-test `try / finally`** — small specs (~ <10 scenarios) where each test owns its data.
--- a/.claude/agents/playwright-test-healer.md
+++ b/.claude/agents/playwright-test-healer.md
@@ -49,6 +49,7 @@ Don't try to start the stack yourself — it can take ~4 minutes on a cold build
 - **The list pages render zero-state when the workspace is empty.** Many locators (search input, sort button, `new-dashboard-cta` testid, "All Dashboards" header) are absent in zero-state. A 30s timeout on those usually means the workspace was empty — seed first via `createDashboardViaApi`.
 - **The "Enter dashboard name…" inline field is a `RequestDashboardBtn` (template-request feedback form), not a create flow.** Tests that try to use it to create a named dashboard will silently no-op. The only UI create paths are the "New dashboard" dropdown → "Create dashboard" (default name "Sample Title", see `DEFAULT_DASHBOARD_TITLE`) or "Import JSON".
 - **Auth.** `tests/e2e/fixtures/auth.ts` logs in once per worker and caches `storageState` (cookies + localStorage with `AUTH_TOKEN`). For API-driven seeding/cleanup, use `authToken(page)` from `helpers/dashboards.ts` and pass `Authorization: Bearer <token>`. Never re-implement login.
+- **Extended fixtures.** Domain-specific fixtures extend `auth` and add seeded data. Alerts uses `fixtures/alerts/alert-rules` (worker-scoped rule list, test-scoped factory) and `fixtures/alerts/alert-history` (extends alert-rules, waits on ruler evaluation). See [docs/contributing/tests/e2e.md](../../docs/contributing/tests/e2e.md) for the pattern. When a test fails on missing data, check if it imports the wrong fixture level.
 - **Ant Design popovers** (sort menu, action menu) are click-toggle. The trigger element is often an inline `<svg>` with a `data-testid` — clicking it opens the popover; clicking it again closes. After selecting an option, the popover auto-closes. If a test interacts with the popover twice, wait for the menu items to be visible explicitly between toggles.
 - **Artifacts.** Every failed test writes to `tests/e2e/artifacts/results/<test-slug>/` — the `error-context.md` accessibility snapshot is the fastest way to see what the page actually looked like when it failed.
 - **Type-check.** After edits, run `npx tsc --noEmit -p tests/e2e/tsconfig.json` if it succeeds, or rely on `npx playwright test --list` to validate the spec parses.
--- a/.github/workflows/integrationci.yaml
+++ b/.github/workflows/integrationci.yaml
@@ -62,7 +62,6 @@ jobs:
          - role
          - rootuser
          - savedview
-          - semconvfamilies
          - serviceaccount
          - spanmapper
          - querier_json_body
--- a/docs/api/openapi.yml
+++ b/docs/api/openapi.yml
@@ -5641,6 +5641,15 @@ components:
      - total
      - endTimeBeforeRetention
      type: object
+    LicensetypesGettableLicense:
+      additionalProperties: {}
+      nullable: true
+      type: object
+    LicensetypesPostableLicense:
+      properties:
+        key:
+          type: string
+      type: object
    LlmpricingruletypesGettablePricingRules:
      properties:
        items:
@@ -8024,13 +8033,6 @@ components:
      - schemaVersion
      - spec
      type: object
-    ServiceaccounttypesDeprecatedPostableServiceAccountRole:
-      properties:
-        id:
-          type: string
-      required:
-      - id
-      type: object
    ServiceaccounttypesGettableFactorAPIKey:
      properties:
        createdAt:
@@ -13262,117 +13264,6 @@ paths:
      summary: Gets service account roles
      tags:
      - serviceaccount
-    post:
-      deprecated: true
-      description: This endpoint assigns a role to a service account
-      operationId: CreateServiceAccountRoleDeprecated
-      parameters:
-      - in: path
-        name: id
-        required: true
-        schema:
-          type: string
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/ServiceaccounttypesDeprecatedPostableServiceAccountRole'
-      responses:
-        "201":
-          content:
-            application/json:
-              schema:
-                properties:
-                  data:
-                    $ref: '#/components/schemas/TypesIdentifiable'
-                  status:
-                    type: string
-                required:
-                - status
-                - data
-                type: object
-          description: Created
-        "400":
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/RenderErrorResponse'
-          description: Bad Request
-        "401":
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/RenderErrorResponse'
-          description: Unauthorized
-        "403":
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/RenderErrorResponse'
-          description: Forbidden
-        "500":
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/RenderErrorResponse'
-          description: Internal Server Error
-      security:
-      - api_key:
-        - serviceaccount:attach
-        - role:attach
-      - tokenizer:
-        - serviceaccount:attach
-        - role:attach
-      summary: Create service account role
-      tags:
-      - serviceaccount
-  /api/v1/service_accounts/{id}/roles/{rid}:
-    delete:
-      deprecated: true
-      description: This endpoint revokes a role from service account
-      operationId: DeleteServiceAccountRoleDeprecated
-      parameters:
-      - in: path
-        name: id
-        required: true
-        schema:
-          type: string
-      - in: path
-        name: rid
-        required: true
-        schema:
-          type: string
-      responses:
-        "204":
-          description: No Content
-        "401":
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/RenderErrorResponse'
-          description: Unauthorized
-        "403":
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/RenderErrorResponse'
-          description: Forbidden
-        "500":
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/RenderErrorResponse'
-          description: Internal Server Error
-      security:
-      - api_key:
-        - serviceaccount:detach
-        - role:detach
-      - tokenizer:
-        - serviceaccount:detach
-        - role:detach
-      summary: Delete service account role
-      tags:
-      - serviceaccount
  /api/v1/service_accounts/me:
    get:
      deprecated: false
@@ -14376,9 +14267,9 @@ paths:
          description: Internal Server Error
      security:
      - api_key:
-        - ADMIN
+        - auth-domain:list
      - tokenizer:
-        - ADMIN
+        - auth-domain:list
      summary: List all auth domains
      tags:
      - authdomains
@@ -14438,9 +14329,13 @@ paths:
          description: Internal Server Error
      security:
      - api_key:
-        - ADMIN
+        - auth-domain:create
+        - auth-domain:attach
+        - role:attach
      - tokenizer:
-        - ADMIN
+        - auth-domain:create
+        - auth-domain:attach
+        - role:attach
      summary: Create auth domain
      tags:
      - authdomains
@@ -14484,9 +14379,9 @@ paths:
          description: Internal Server Error
      security:
      - api_key:
-        - ADMIN
+        - auth-domain:delete
      - tokenizer:
-        - ADMIN
+        - auth-domain:delete
      summary: Delete auth domain
      tags:
      - authdomains
@@ -14541,9 +14436,9 @@ paths:
          description: Internal Server Error
      security:
      - api_key:
-        - ADMIN
+        - auth-domain:read
      - tokenizer:
-        - ADMIN
+        - auth-domain:read
      summary: Get auth domain by ID
      tags:
      - authdomains
@@ -14597,9 +14492,17 @@ paths:
          description: Internal Server Error
      security:
      - api_key:
-        - ADMIN
+        - auth-domain:update
+        - auth-domain:attach
+        - auth-domain:detach
+        - role:attach
+        - role:detach
      - tokenizer:
-        - ADMIN
+        - auth-domain:update
+        - auth-domain:attach
+        - auth-domain:detach
+        - role:attach
+        - role:detach
      summary: Update auth domain
      tags:
      - authdomains
@@ -24167,6 +24070,166 @@ paths:
      summary: Put profile in Zeus for a deployment.
      tags:
      - zeus
+  /api/v3/licenses:
+    post:
+      deprecated: false
+      description: This endpoint validates the license key with upstream and activates
+        the license for the organization.
+      operationId: ActivateLicense
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/LicensetypesPostableLicense'
+      responses:
+        "202":
+          description: Accepted
+        "400":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Bad Request
+        "401":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Unauthorized
+        "403":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Forbidden
+        "404":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Not Found
+        "409":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Conflict
+        "500":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Internal Server Error
+      security:
+      - api_key:
+        - license:create
+      - tokenizer:
+        - license:create
+      summary: Activate a license.
+      tags:
+      - licenses
+    put:
+      deprecated: false
+      description: This endpoint refreshes the active license of the organization
+        from upstream.
+      operationId: RefreshLicense
+      responses:
+        "204":
+          description: No Content
+        "400":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Bad Request
+        "401":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Unauthorized
+        "403":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Forbidden
+        "404":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Not Found
+        "500":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Internal Server Error
+      security:
+      - api_key:
+        - license:update
+      - tokenizer:
+        - license:update
+      summary: Refresh the active license.
+      tags:
+      - licenses
+  /api/v3/licenses/active:
+    get:
+      deprecated: false
+      description: This endpoint gets the active license of the organization.
+      operationId: GetActiveLicense
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                properties:
+                  data:
+                    $ref: '#/components/schemas/LicensetypesGettableLicense'
+                  status:
+                    type: string
+                required:
+                - status
+                - data
+                type: object
+          description: OK
+        "400":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Bad Request
+        "401":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Unauthorized
+        "403":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Forbidden
+        "404":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Not Found
+        "500":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Internal Server Error
+      security:
+      - api_key: []
+      - tokenizer: []
+      summary: Get the active license.
+      tags:
+      - licenses
  /api/v3/metrics/dashboards:
    get:
      deprecated: false
--- a/docs/contributing/tests/e2e.md
+++ b/docs/contributing/tests/e2e.md
@@ -112,6 +112,41 @@ These two folders look similar but mean different things:

 Rule of thumb: if it's a `test.extend` fixture, put it in `fixtures/`. If it's a function you call explicitly (or a constant the function uses), put it in `helpers/`. If it's a static file the helpers read, put it in `testdata/`.

+### Extended fixtures
+
+For features needing complex setup (API-seeded data, ruler evaluation waits, cleanup), create domain-specific fixtures that extend `auth`. Group them in `fixtures/<domain>/`.
+
+**Fixture scopes:**
+- **test scope** — fresh data per test. Use for mutations (edit, delete, rename).
+- **worker scope** — shared across tests in one worker. Use for read-only data. Worker scope pays the setup cost once per worker instead of once per test.
+
+**The alerts pattern** (`fixtures/alerts/`) demonstrates extending fixtures:
+
+```
+fixtures/alerts/
+├── alert-rules.ts   # extends auth — worker-scoped rule list + test-scoped factory
+└── alert-history.ts # extends alert-rules — adds history fixtures (waits on ruler)
+```
+
+Specs import from the fixture they need:
+
+```ts
+// List tests — just need rules, no history
+import { test, expect } from '../../../fixtures/alerts/alert-rules';
+
+// History tests — need history rows from ruler evaluation
+import { test, expect } from '../../../fixtures/alerts/alert-history';
+```
+
+**When creating new fixtures:**
+
+1. **Identify scope** — Will tests mutate the data? If yes, test-scoped. If read-only, worker-scoped.
+2. **Group by domain** — Put fixtures in `fixtures/<domain>/`. Helpers in `helpers/<domain>/`.
+3. **Extend existing fixtures** — Chain from `auth` or another fixture to inherit its setup.
+4. **Handle timeouts** — Worker-scoped fixtures that wait on backend processing need explicit timeouts.
+5. **Clean up** — Always delete seeded data in the fixture teardown (after `use()`).
+6. **Extract logic into functions** — Keep the `test.extend()` block lean; move setup/teardown logic to named functions so the extend block reads as a manifest of "what fixtures exist."
+
 Each spec follows these principles:

 1. **Directory per feature**: `tests/e2e/tests/<feature>/*.spec.ts`. Cross-resource junction concerns (e.g. cascade-delete) go in their own file, not packed into one giant spec.
@@ -232,11 +267,14 @@ cd tests/e2e
 # Single feature dir
 npx playwright test tests/alerts/ --project=chromium

+# Single sub-area
+npx playwright test tests/alerts/history/ --project=chromium
+
 # Single file
-npx playwright test tests/alerts/alerts.spec.ts --project=chromium
+npx playwright test tests/alerts/page.spec.ts --project=chromium

 # Single test by title grep
-npx playwright test --project=chromium -g "TC-01"
+npx playwright test --project=chromium -g "AL-01"
 ```

 ### Iterative modes
@@ -270,7 +308,14 @@ yarn test:staging
 | `SIGNOZ_E2E_PASSWORD` | Admin password. Bootstrap writes the integration-test default. |
 | `SIGNOZ_E2E_SEEDER_URL` | Seeder HTTP base URL — hit by specs that need per-test telemetry. |

-Loading order in `playwright.config.ts`: `.env` first (user-provided, staging), then `.env.local` with `override: true` (bootstrap-generated, local mode). Anything already set in `process.env` at yarn-test time wins because dotenv doesn't touch vars that are already present.
+Precedence in `playwright.config.ts`, lowest to highest: `.env` (user-provided, staging) → `.env.local` (bootstrap-generated, local mode) → whatever is already in `process.env`. The config parses both files itself and only fills in keys the environment does not already define, so exporting a variable always wins:
+
+```bash
+# runs against a locally served frontend, not whatever .env.local points at
+SIGNOZ_E2E_BASE_URL=http://127.0.0.1:3301 pnpm test tests/alerts
+```
+
+This is deliberately not `dotenv.config({ override: true })`. That flag makes the *file* beat `process.env`, which silently discarded exported values — including the `SIGNOZ_E2E_BASE_URL` in `pnpm test:staging`, whenever a `.env.local` happened to exist.

 ### Playwright options

--- a/ee/query-service/app/api/api.go
+++ b/ee/query-service/app/api/api.go
@@ -4,10 +4,10 @@ import (
 	"net/http"
 	"time"

-	"github.com/SigNoz/signoz/ee/licensing/httplicensing"
 	"github.com/SigNoz/signoz/ee/query-service/usage"
 	"github.com/SigNoz/signoz/pkg/global"
 	"github.com/SigNoz/signoz/pkg/http/middleware"
+	"github.com/SigNoz/signoz/pkg/licensing"
 	baseapp "github.com/SigNoz/signoz/pkg/query-service/app"
 	"github.com/SigNoz/signoz/pkg/query-service/app/integrations"
 	"github.com/SigNoz/signoz/pkg/query-service/app/logparsingpipeline"
@@ -42,7 +42,7 @@ func NewAPIHandler(opts APIHandlerOptions, signoz *signoz.SigNoz, config signoz.
 		IntegrationsController:        opts.IntegrationsController,
 		LogsParsingPipelineController: opts.LogsParsingPipelineController,
 		FluxInterval:                  opts.FluxInterval,
-		LicensingAPI:                  httplicensing.NewLicensingAPI(signoz.Licensing),
+		LicensingHandler:              licensing.NewHandler(signoz.Licensing),
 		Signoz:                        signoz,
 		QueryParserAPI:                queryparser.NewAPI(signoz.Instrumentation.ToProviderSettings(), signoz.QueryParser),
 	}, config)
@@ -72,14 +72,9 @@ func (ah *APIHandler) RegisterRoutes(router *mux.Router, am *middleware.AuthZ) {
 	// base overrides
 	router.HandleFunc("/api/v1/version", am.OpenAccess(ah.getVersion)).Methods(http.MethodGet)

-	router.HandleFunc("/api/v1/checkout", am.AdminAccess(ah.LicensingAPI.Checkout)).Methods(http.MethodPost)
+	router.HandleFunc("/api/v1/checkout", am.AdminAccess(ah.LicensingHandler.Checkout)).Methods(http.MethodPost)
 	router.HandleFunc("/api/v1/billing", am.AdminAccess(ah.getBilling)).Methods(http.MethodGet)
-	router.HandleFunc("/api/v1/portal", am.AdminAccess(ah.LicensingAPI.Portal)).Methods(http.MethodPost)
-
-	// v3
-	router.HandleFunc("/api/v3/licenses", am.AdminAccess(ah.LicensingAPI.Activate)).Methods(http.MethodPost)
-	router.HandleFunc("/api/v3/licenses", am.AdminAccess(ah.LicensingAPI.Refresh)).Methods(http.MethodPut)
-	router.HandleFunc("/api/v3/licenses/active", am.ViewAccess(ah.LicensingAPI.GetActive)).Methods(http.MethodGet)
+	router.HandleFunc("/api/v1/portal", am.AdminAccess(ah.LicensingHandler.Portal)).Methods(http.MethodPost)

 	// v4
 	router.HandleFunc("/api/v4/query_range", am.ViewAccess(ah.queryRangeV4)).Methods(http.MethodPost)
--- a/frontend/jest.setup.ts
+++ b/frontend/jest.setup.ts
@@ -62,6 +62,40 @@ if (typeof window.ResizeObserver === 'undefined') {
 	(window as any).ResizeObserver = ResizeObserverMock;
 }

+if (typeof globalThis.DOMRect === 'undefined') {
+	(globalThis as any).DOMRect = class DOMRect {
+		x = 0;
+		y = 0;
+		width = 0;
+		height = 0;
+		top = 0;
+		right = 0;
+		bottom = 0;
+		left = 0;
+		constructor(x = 0, y = 0, width = 0, height = 0) {
+			this.x = x;
+			this.y = y;
+			this.width = width;
+			this.height = height;
+			this.top = y;
+			this.right = x + width;
+			this.bottom = y + height;
+			this.left = x;
+		}
+		toJSON(): any {
+			return { x: this.x, y: this.y, width: this.width, height: this.height };
+		}
+		static fromRect(rect?: {
+			x?: number;
+			y?: number;
+			width?: number;
+			height?: number;
+		}): DOMRect {
+			return new DOMRect(rect?.x, rect?.y, rect?.width, rect?.height);
+		}
+	};
+}
+
 // Patch getComputedStyle to handle CSS parsing errors from @signozhq/* packages.
 // These packages inject CSS at import time via style-inject / vite-plugin-css-injected-by-js.
 // jsdom's nwsapi cannot parse some of the injected selectors (e.g. Tailwind's :animate-in),
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -48,9 +48,9 @@
    "@monaco-editor/react": "^4.7.0",
    "@sentry/react": "10.57.0",
    "@sentry/vite-plugin": "5.3.0",
-    "@signozhq/design-tokens": "2.1.4",
+    "@signozhq/design-tokens": "2.1.6",
    "@signozhq/icons": "0.4.0",
-    "@signozhq/ui": "0.0.23",
+    "@signozhq/ui": "0.1.0",
    "@tanstack/react-table": "8.21.3",
    "@tanstack/react-virtual": "3.13.22",
    "@uiw/codemirror-theme-copilot": "4.23.11",
@@ -238,4 +238,4 @@
    "tmp@<0.2.6": ">=0.2.6 <0.3.0",
    "yaml@>=1.0.0 <1.10.3": ">=1.10.3 <2"
  }
-}
+}
--- a/frontend/pnpm-lock.yaml
+++ b/frontend/pnpm-lock.yaml
--- a/frontend/src/api/ErrorResponseHandler.ts
+++ b/frontend/src/api/ErrorResponseHandler.ts
@@ -53,7 +53,7 @@ export function ErrorResponseHandler(error: AxiosError): ErrorResponse {
 		};
 	}
 	// anything else
-	console.error('any');
+	console.error('ErrorResponseHandler: unclassified error');
 	return {
 		statusCode: 500,
 		payload: null,
--- a/frontend/src/api/generated/services/licenses/index.ts
+++ b/frontend/src/api/generated/services/licenses/index.ts
@@ -0,0 +1,268 @@
+/**
+ * ! Do not edit manually
+ * * The file has been auto-generated using Orval for SigNoz
+ * * regenerate with 'pnpm generate:api'
+ * SigNoz
+ */
+import { useMutation, useQuery } from 'react-query';
+import type {
+	InvalidateOptions,
+	MutationFunction,
+	QueryClient,
+	QueryFunction,
+	QueryKey,
+	UseMutationOptions,
+	UseMutationResult,
+	UseQueryOptions,
+	UseQueryResult,
+} from 'react-query';
+
+import type {
+	GetActiveLicense200,
+	LicensetypesPostableLicenseDTO,
+	RenderErrorResponseDTO,
+} from '../sigNoz.schemas';
+
+import { GeneratedAPIInstance } from '../../../generatedAPIInstance';
+import type { ErrorType, BodyType } from '../../../generatedAPIInstance';
+
+/**
+ * This endpoint validates the license key with upstream and activates the license for the organization.
+ * @summary Activate a license.
+ */
+export const activateLicense = (
+	licensetypesPostableLicenseDTO?: BodyType<LicensetypesPostableLicenseDTO>,
+	signal?: AbortSignal,
+) => {
+	return GeneratedAPIInstance<void>({
+		url: `/api/v3/licenses`,
+		method: 'POST',
+		headers: { 'Content-Type': 'application/json' },
+		data: licensetypesPostableLicenseDTO,
+		signal,
+	});
+};
+
+export const getActivateLicenseMutationOptions = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof activateLicense>>,
+		TError,
+		{ data?: BodyType<LicensetypesPostableLicenseDTO> },
+		TContext
+	>;
+}): UseMutationOptions<
+	Awaited<ReturnType<typeof activateLicense>>,
+	TError,
+	{ data?: BodyType<LicensetypesPostableLicenseDTO> },
+	TContext
+> => {
+	const mutationKey = ['activateLicense'];
+	const { mutation: mutationOptions } = options
+		? options.mutation &&
+			'mutationKey' in options.mutation &&
+			options.mutation.mutationKey
+			? options
+			: { ...options, mutation: { ...options.mutation, mutationKey } }
+		: { mutation: { mutationKey } };
+
+	const mutationFn: MutationFunction<
+		Awaited<ReturnType<typeof activateLicense>>,
+		{ data?: BodyType<LicensetypesPostableLicenseDTO> }
+	> = (props) => {
+		const { data } = props ?? {};
+
+		return activateLicense(data);
+	};
+
+	return { mutationFn, ...mutationOptions };
+};
+
+export type ActivateLicenseMutationResult = NonNullable<
+	Awaited<ReturnType<typeof activateLicense>>
+>;
+export type ActivateLicenseMutationBody =
+	| BodyType<LicensetypesPostableLicenseDTO>
+	| undefined;
+export type ActivateLicenseMutationError = ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary Activate a license.
+ */
+export const useActivateLicense = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof activateLicense>>,
+		TError,
+		{ data?: BodyType<LicensetypesPostableLicenseDTO> },
+		TContext
+	>;
+}): UseMutationResult<
+	Awaited<ReturnType<typeof activateLicense>>,
+	TError,
+	{ data?: BodyType<LicensetypesPostableLicenseDTO> },
+	TContext
+> => {
+	return useMutation(getActivateLicenseMutationOptions(options));
+};
+/**
+ * This endpoint refreshes the active license of the organization from upstream.
+ * @summary Refresh the active license.
+ */
+export const refreshLicense = (signal?: AbortSignal) => {
+	return GeneratedAPIInstance<void>({
+		url: `/api/v3/licenses`,
+		method: 'PUT',
+		signal,
+	});
+};
+
+export const getRefreshLicenseMutationOptions = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof refreshLicense>>,
+		TError,
+		void,
+		TContext
+	>;
+}): UseMutationOptions<
+	Awaited<ReturnType<typeof refreshLicense>>,
+	TError,
+	void,
+	TContext
+> => {
+	const mutationKey = ['refreshLicense'];
+	const { mutation: mutationOptions } = options
+		? options.mutation &&
+			'mutationKey' in options.mutation &&
+			options.mutation.mutationKey
+			? options
+			: { ...options, mutation: { ...options.mutation, mutationKey } }
+		: { mutation: { mutationKey } };
+
+	const mutationFn: MutationFunction<
+		Awaited<ReturnType<typeof refreshLicense>>,
+		void
+	> = () => {
+		return refreshLicense();
+	};
+
+	return { mutationFn, ...mutationOptions };
+};
+
+export type RefreshLicenseMutationResult = NonNullable<
+	Awaited<ReturnType<typeof refreshLicense>>
+>;
+
+export type RefreshLicenseMutationError = ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary Refresh the active license.
+ */
+export const useRefreshLicense = <
+	TError = ErrorType<RenderErrorResponseDTO>,
+	TContext = unknown,
+>(options?: {
+	mutation?: UseMutationOptions<
+		Awaited<ReturnType<typeof refreshLicense>>,
+		TError,
+		void,
+		TContext
+	>;
+}): UseMutationResult<
+	Awaited<ReturnType<typeof refreshLicense>>,
+	TError,
+	void,
+	TContext
+> => {
+	return useMutation(getRefreshLicenseMutationOptions(options));
+};
+/**
+ * This endpoint gets the active license of the organization.
+ * @summary Get the active license.
+ */
+export const getActiveLicense = (signal?: AbortSignal) => {
+	return GeneratedAPIInstance<GetActiveLicense200>({
+		url: `/api/v3/licenses/active`,
+		method: 'GET',
+		signal,
+	});
+};
+
+export const getGetActiveLicenseQueryKey = () => {
+	return [`/api/v3/licenses/active`] as const;
+};
+
+export const getGetActiveLicenseQueryOptions = <
+	TData = Awaited<ReturnType<typeof getActiveLicense>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(options?: {
+	query?: UseQueryOptions<
+		Awaited<ReturnType<typeof getActiveLicense>>,
+		TError,
+		TData
+	>;
+}) => {
+	const { query: queryOptions } = options ?? {};
+
+	const queryKey = queryOptions?.queryKey ?? getGetActiveLicenseQueryKey();
+
+	const queryFn: QueryFunction<Awaited<ReturnType<typeof getActiveLicense>>> = ({
+		signal,
+	}) => getActiveLicense(signal);
+
+	return { queryKey, queryFn, ...queryOptions } as UseQueryOptions<
+		Awaited<ReturnType<typeof getActiveLicense>>,
+		TError,
+		TData
+	> & { queryKey: QueryKey };
+};
+
+export type GetActiveLicenseQueryResult = NonNullable<
+	Awaited<ReturnType<typeof getActiveLicense>>
+>;
+export type GetActiveLicenseQueryError = ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary Get the active license.
+ */
+
+export function useGetActiveLicense<
+	TData = Awaited<ReturnType<typeof getActiveLicense>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(options?: {
+	query?: UseQueryOptions<
+		Awaited<ReturnType<typeof getActiveLicense>>,
+		TError,
+		TData
+	>;
+}): UseQueryResult<TData, TError> & { queryKey: QueryKey } {
+	const queryOptions = getGetActiveLicenseQueryOptions(options);
+
+	const query = useQuery(queryOptions) as UseQueryResult<TData, TError> & {
+		queryKey: QueryKey;
+	};
+
+	return { ...query, queryKey: queryOptions.queryKey };
+}
+
+/**
+ * @summary Get the active license.
+ */
+export const invalidateGetActiveLicense = async (
+	queryClient: QueryClient,
+	options?: InvalidateOptions,
+): Promise<QueryClient> => {
+	await queryClient.invalidateQueries(
+		{ queryKey: getGetActiveLicenseQueryKey() },
+		options,
+	);
+
+	return queryClient;
+};
--- a/frontend/src/api/generated/services/serviceaccount/index.ts
+++ b/frontend/src/api/generated/services/serviceaccount/index.ts
@@ -22,10 +22,7 @@ import type {
 	CreateServiceAccountKey201,
 	CreateServiceAccountKeyPathParameters,
 	CreateServiceAccountRole201,
-	CreateServiceAccountRoleDeprecated201,
-	CreateServiceAccountRoleDeprecatedPathParameters,
 	DeleteServiceAccountPathParameters,
-	DeleteServiceAccountRoleDeprecatedPathParameters,
 	DeleteServiceAccountRolePathParameters,
 	GetMyServiceAccount200,
 	GetServiceAccount200,
@@ -39,7 +36,6 @@ import type {
 	ListServiceAccounts200,
 	RenderErrorResponseDTO,
 	RevokeServiceAccountKeyPathParameters,
-	ServiceaccounttypesDeprecatedPostableServiceAccountRoleDTO,
 	ServiceaccounttypesPostableFactorAPIKeyDTO,
 	ServiceaccounttypesPostableServiceAccountDTO,
 	ServiceaccounttypesPostableServiceAccountRoleDTO,
@@ -1253,194 +1249,6 @@ export const invalidateGetServiceAccountRoles = async (
 	return queryClient;
 };

-/**
- * This endpoint assigns a role to a service account
- * @deprecated
- * @summary Create service account role
- */
-export const createServiceAccountRoleDeprecated = (
-	{ id }: CreateServiceAccountRoleDeprecatedPathParameters,
-	serviceaccounttypesDeprecatedPostableServiceAccountRoleDTO?: BodyType<ServiceaccounttypesDeprecatedPostableServiceAccountRoleDTO>,
-	signal?: AbortSignal,
-) => {
-	return GeneratedAPIInstance<CreateServiceAccountRoleDeprecated201>({
-		url: `/api/v1/service_accounts/${id}/roles`,
-		method: 'POST',
-		headers: { 'Content-Type': 'application/json' },
-		data: serviceaccounttypesDeprecatedPostableServiceAccountRoleDTO,
-		signal,
-	});
-};
-
-export const getCreateServiceAccountRoleDeprecatedMutationOptions = <
-	TError = ErrorType<RenderErrorResponseDTO>,
-	TContext = unknown,
->(options?: {
-	mutation?: UseMutationOptions<
-		Awaited<ReturnType<typeof createServiceAccountRoleDeprecated>>,
-		TError,
-		{
-			pathParams: CreateServiceAccountRoleDeprecatedPathParameters;
-			data?: BodyType<ServiceaccounttypesDeprecatedPostableServiceAccountRoleDTO>;
-		},
-		TContext
-	>;
-}): UseMutationOptions<
-	Awaited<ReturnType<typeof createServiceAccountRoleDeprecated>>,
-	TError,
-	{
-		pathParams: CreateServiceAccountRoleDeprecatedPathParameters;
-		data?: BodyType<ServiceaccounttypesDeprecatedPostableServiceAccountRoleDTO>;
-	},
-	TContext
-> => {
-	const mutationKey = ['createServiceAccountRoleDeprecated'];
-	const { mutation: mutationOptions } = options
-		? options.mutation &&
-			'mutationKey' in options.mutation &&
-			options.mutation.mutationKey
-			? options
-			: { ...options, mutation: { ...options.mutation, mutationKey } }
-		: { mutation: { mutationKey } };
-
-	const mutationFn: MutationFunction<
-		Awaited<ReturnType<typeof createServiceAccountRoleDeprecated>>,
-		{
-			pathParams: CreateServiceAccountRoleDeprecatedPathParameters;
-			data?: BodyType<ServiceaccounttypesDeprecatedPostableServiceAccountRoleDTO>;
-		}
-	> = (props) => {
-		const { pathParams, data } = props ?? {};
-
-		return createServiceAccountRoleDeprecated(pathParams, data);
-	};
-
-	return { mutationFn, ...mutationOptions };
-};
-
-export type CreateServiceAccountRoleDeprecatedMutationResult = NonNullable<
-	Awaited<ReturnType<typeof createServiceAccountRoleDeprecated>>
->;
-export type CreateServiceAccountRoleDeprecatedMutationBody =
-	| BodyType<ServiceaccounttypesDeprecatedPostableServiceAccountRoleDTO>
-	| undefined;
-export type CreateServiceAccountRoleDeprecatedMutationError =
-	ErrorType<RenderErrorResponseDTO>;
-
-/**
- * @deprecated
- * @summary Create service account role
- */
-export const useCreateServiceAccountRoleDeprecated = <
-	TError = ErrorType<RenderErrorResponseDTO>,
-	TContext = unknown,
->(options?: {
-	mutation?: UseMutationOptions<
-		Awaited<ReturnType<typeof createServiceAccountRoleDeprecated>>,
-		TError,
-		{
-			pathParams: CreateServiceAccountRoleDeprecatedPathParameters;
-			data?: BodyType<ServiceaccounttypesDeprecatedPostableServiceAccountRoleDTO>;
-		},
-		TContext
-	>;
-}): UseMutationResult<
-	Awaited<ReturnType<typeof createServiceAccountRoleDeprecated>>,
-	TError,
-	{
-		pathParams: CreateServiceAccountRoleDeprecatedPathParameters;
-		data?: BodyType<ServiceaccounttypesDeprecatedPostableServiceAccountRoleDTO>;
-	},
-	TContext
-> => {
-	return useMutation(
-		getCreateServiceAccountRoleDeprecatedMutationOptions(options),
-	);
-};
-/**
- * This endpoint revokes a role from service account
- * @deprecated
- * @summary Delete service account role
- */
-export const deleteServiceAccountRoleDeprecated = (
-	{ id, rid }: DeleteServiceAccountRoleDeprecatedPathParameters,
-	signal?: AbortSignal,
-) => {
-	return GeneratedAPIInstance<void>({
-		url: `/api/v1/service_accounts/${id}/roles/${rid}`,
-		method: 'DELETE',
-		signal,
-	});
-};
-
-export const getDeleteServiceAccountRoleDeprecatedMutationOptions = <
-	TError = ErrorType<RenderErrorResponseDTO>,
-	TContext = unknown,
->(options?: {
-	mutation?: UseMutationOptions<
-		Awaited<ReturnType<typeof deleteServiceAccountRoleDeprecated>>,
-		TError,
-		{ pathParams: DeleteServiceAccountRoleDeprecatedPathParameters },
-		TContext
-	>;
-}): UseMutationOptions<
-	Awaited<ReturnType<typeof deleteServiceAccountRoleDeprecated>>,
-	TError,
-	{ pathParams: DeleteServiceAccountRoleDeprecatedPathParameters },
-	TContext
-> => {
-	const mutationKey = ['deleteServiceAccountRoleDeprecated'];
-	const { mutation: mutationOptions } = options
-		? options.mutation &&
-			'mutationKey' in options.mutation &&
-			options.mutation.mutationKey
-			? options
-			: { ...options, mutation: { ...options.mutation, mutationKey } }
-		: { mutation: { mutationKey } };
-
-	const mutationFn: MutationFunction<
-		Awaited<ReturnType<typeof deleteServiceAccountRoleDeprecated>>,
-		{ pathParams: DeleteServiceAccountRoleDeprecatedPathParameters }
-	> = (props) => {
-		const { pathParams } = props ?? {};
-
-		return deleteServiceAccountRoleDeprecated(pathParams);
-	};
-
-	return { mutationFn, ...mutationOptions };
-};
-
-export type DeleteServiceAccountRoleDeprecatedMutationResult = NonNullable<
-	Awaited<ReturnType<typeof deleteServiceAccountRoleDeprecated>>
->;
-
-export type DeleteServiceAccountRoleDeprecatedMutationError =
-	ErrorType<RenderErrorResponseDTO>;
-
-/**
- * @deprecated
- * @summary Delete service account role
- */
-export const useDeleteServiceAccountRoleDeprecated = <
-	TError = ErrorType<RenderErrorResponseDTO>,
-	TContext = unknown,
->(options?: {
-	mutation?: UseMutationOptions<
-		Awaited<ReturnType<typeof deleteServiceAccountRoleDeprecated>>,
-		TError,
-		{ pathParams: DeleteServiceAccountRoleDeprecatedPathParameters },
-		TContext
-	>;
-}): UseMutationResult<
-	Awaited<ReturnType<typeof deleteServiceAccountRoleDeprecated>>,
-	TError,
-	{ pathParams: DeleteServiceAccountRoleDeprecatedPathParameters },
-	TContext
-> => {
-	return useMutation(
-		getDeleteServiceAccountRoleDeprecatedMutationOptions(options),
-	);
-};
 /**
 * This endpoint gets my service account
 * @summary Gets my service account
--- a/frontend/src/api/generated/services/sigNoz.schemas.ts
+++ b/frontend/src/api/generated/services/sigNoz.schemas.ts
@@ -7171,6 +7171,21 @@ export interface InframonitoringtypesVolumesDTO {
 	warning?: Querybuildertypesv5QueryWarnDataDTO;
 }

+export type LicensetypesGettableLicenseDTOAnyOf = { [key: string]: unknown };
+
+/**
+ * @nullable
+ */
+export type LicensetypesGettableLicenseDTO =
+	LicensetypesGettableLicenseDTOAnyOf | null;
+
+export interface LicensetypesPostableLicenseDTO {
+	/**
+	 * @type string
+	 */
+	key?: string;
+}
+
 /**
 * @nullable
 */
@@ -9092,13 +9107,6 @@ export interface SavedviewtypesUpdatableSavedViewDTO {
 	spec: SavedviewtypesSavedViewSpecDTO;
 }

-export interface ServiceaccounttypesDeprecatedPostableServiceAccountRoleDTO {
-	/**
-	 * @type string
-	 */
-	id: string;
-}
-
 export interface ServiceaccounttypesGettableFactorAPIKeyDTO {
 	/**
 	 * @type string
@@ -11020,21 +11028,6 @@ export type GetServiceAccountRoles200 = {
 	status: string;
 };

-export type CreateServiceAccountRoleDeprecatedPathParameters = {
-	id: string;
-};
-export type CreateServiceAccountRoleDeprecated201 = {
-	data: TypesIdentifiableDTO;
-	/**
-	 * @type string
-	 */
-	status: string;
-};
-
-export type DeleteServiceAccountRoleDeprecatedPathParameters = {
-	id: string;
-	rid: string;
-};
 export type GetMyServiceAccount200 = {
 	data: ServiceaccounttypesServiceAccountWithRolesDTO;
 	/**
@@ -12421,6 +12414,14 @@ export type GetHosts200 = {
 	status: string;
 };

+export type GetActiveLicense200 = {
+	data: LicensetypesGettableLicenseDTO | null;
+	/**
+	 * @type string
+	 */
+	status: string;
+};
+
 export type GetMetricDashboardsV2Params = {
 	/**
 	 * @type string
--- a/frontend/src/components/AlertBreadcrumb/AlertBreadcrumb.tsx
+++ b/frontend/src/components/AlertBreadcrumb/AlertBreadcrumb.tsx
@@ -8,12 +8,14 @@ export interface AlertBreadcrumbProps {
 	items: BreadcrumbItemConfig[];
 	className?: string;
 	showDivider?: boolean;
+	testId?: string;
 }

 function AlertBreadcrumb({
 	items,
 	className,
 	showDivider = true,
+	testId,
 }: AlertBreadcrumbProps): JSX.Element {
 	const breadcrumbItems = items.map((item) => ({
 		title: <BreadcrumbItem {...item} />,
@@ -24,6 +26,7 @@ function AlertBreadcrumb({
 			<Breadcrumb
 				className={`${styles.breadcrumb} ${className || ''}`}
 				items={breadcrumbItems}
+				data-testid={testId}
 			/>
 			{showDivider && <Divider className={styles.divider} />}
 		</>
--- a/frontend/src/components/ClientSideQBSearch/ClientSideQBSearch.styles.scss
+++ b/frontend/src/components/ClientSideQBSearch/ClientSideQBSearch.styles.scss
@@ -1,5 +0,0 @@
-.client-side-qb-search {
-	.ant-select-selection-search {
-		width: max-content !important;
-	}
-}
--- a/frontend/src/components/ClientSideQBSearch/ClientSideQBSearch.tsx
+++ b/frontend/src/components/ClientSideQBSearch/ClientSideQBSearch.tsx
@@ -1,661 +0,0 @@
-/* eslint-disable sonarjs/cognitive-complexity */
-
-import {
-	KeyboardEvent,
-	useCallback,
-	useEffect,
-	useMemo,
-	useRef,
-	useState,
-} from 'react';
-import { Color } from '@signozhq/design-tokens';
-import { Select, Tooltip } from 'antd';
-import {
-	OPERATORS,
-	QUERY_BUILDER_OPERATORS_BY_TYPES,
-	QUERY_BUILDER_SEARCH_VALUES,
-} from 'constants/queryBuilder';
-import { CustomTagProps } from 'container/QueryBuilder/filters/QueryBuilderSearch';
-import { selectStyle } from 'container/QueryBuilder/filters/QueryBuilderSearch/config';
-import { PLACEHOLDER } from 'container/QueryBuilder/filters/QueryBuilderSearch/constant';
-import { TypographyText } from 'container/QueryBuilder/filters/QueryBuilderSearch/style';
-import {
-	checkCommaInValue,
-	getOperatorFromValue,
-	getOperatorValue,
-	getTagToken,
-	isInNInOperator,
-} from 'container/QueryBuilder/filters/QueryBuilderSearch/utils';
-import {
-	DropdownState,
-	ITag,
-	Option,
-} from 'container/QueryBuilder/filters/QueryBuilderSearchV2/QueryBuilderSearchV2';
-import Suggestions from 'container/QueryBuilder/filters/QueryBuilderSearchV2/Suggestions';
-import { WhereClauseConfig } from 'hooks/queryBuilder/useAutoComplete';
-import { validationMapper } from 'hooks/queryBuilder/useIsValidTag';
-import { operatorTypeMapper } from 'hooks/queryBuilder/useOperatorType';
-import { useIsDarkMode } from 'hooks/useDarkMode';
-import { isArray, isEmpty, isEqual, isObject } from 'lodash-es';
-import { ChevronDown, ChevronUp } from '@signozhq/icons';
-import type { BaseSelectRef } from 'rc-select';
-import {
-	BaseAutocompleteData,
-	DataTypes,
-} from 'types/api/queryBuilder/queryAutocompleteResponse';
-import {
-	IBuilderQuery,
-	TagFilter,
-} from 'types/api/queryBuilder/queryBuilderData';
-import { popupContainer } from 'utils/selectPopupContainer';
-import { v4 as uuid } from 'uuid';
-
-import './ClientSideQBSearch.styles.scss';
-import { Badge } from '@signozhq/ui/badge';
-
-export interface AttributeKey {
-	key: string;
-}
-
-export interface AttributeValuesMap {
-	[key: string]: AttributeValue;
-}
-
-interface ClientSideQBSearchProps {
-	filters: TagFilter;
-	onChange: (value: TagFilter) => void;
-	whereClauseConfig?: WhereClauseConfig;
-	placeholder?: string;
-	className?: string;
-	suffixIcon?: React.ReactNode;
-	attributeValuesMap?: AttributeValuesMap;
-	attributeKeys: AttributeKey[];
-}
-
-interface AttributeValue {
-	stringAttributeValues: string[] | [];
-	numberAttributeValues: number[] | [];
-	boolAttributeValues: boolean[] | [];
-}
-
-function ClientSideQBSearch(
-	props: ClientSideQBSearchProps,
-): React.ReactElement {
-	const {
-		onChange,
-		placeholder,
-		className,
-		suffixIcon,
-		whereClauseConfig,
-		attributeValuesMap,
-		attributeKeys,
-		filters,
-	} = props;
-
-	const isDarkMode = useIsDarkMode();
-
-	const selectRef = useRef<BaseSelectRef>(null);
-
-	const [isOpen, setIsOpen] = useState<boolean>(false);
-
-	// create the tags from the initial query here, this should only be computed on the first load as post that tags and query will be always in sync.
-	const [tags, setTags] = useState<ITag[]>(filters.items as ITag[]);
-
-	// this will maintain the current state of in process filter item
-	const [currentFilterItem, setCurrentFilterItem] = useState<ITag | undefined>();
-
-	const [currentState, setCurrentState] = useState<DropdownState>(
-		DropdownState.ATTRIBUTE_KEY,
-	);
-
-	// to maintain the current running state until the tokenization happens for the tag
-	const [searchValue, setSearchValue] = useState<string>('');
-
-	const [dropdownOptions, setDropdownOptions] = useState<Option[]>([]);
-
-	const attributeValues = useMemo(() => {
-		if (currentFilterItem?.key?.key) {
-			return attributeValuesMap?.[currentFilterItem.key.key];
-		}
-		return {
-			stringAttributeValues: [],
-			numberAttributeValues: [],
-			boolAttributeValues: [],
-		};
-	}, [attributeValuesMap, currentFilterItem?.key?.key]);
-
-	const handleDropdownSelect = useCallback(
-		(value: string) => {
-			let parsedValue: BaseAutocompleteData | string;
-
-			try {
-				parsedValue = JSON.parse(value);
-			} catch {
-				parsedValue = value;
-			}
-			if (currentState === DropdownState.ATTRIBUTE_KEY) {
-				setCurrentFilterItem((prev) => ({
-					...prev,
-					key: parsedValue as BaseAutocompleteData,
-					op: '',
-					value: '',
-				}));
-				setCurrentState(DropdownState.OPERATOR);
-				setSearchValue((parsedValue as BaseAutocompleteData)?.key);
-			} else if (currentState === DropdownState.OPERATOR) {
-				if (value === OPERATORS.EXISTS || value === OPERATORS.NOT_EXISTS) {
-					setTags((prev) => [
-						...prev,
-						{
-							key: currentFilterItem?.key,
-							op: value,
-							value: '',
-						} as ITag,
-					]);
-					setCurrentFilterItem(undefined);
-					setSearchValue('');
-					setCurrentState(DropdownState.ATTRIBUTE_KEY);
-				} else {
-					setCurrentFilterItem((prev) => ({
-						key: prev?.key as BaseAutocompleteData,
-						op: value as string,
-						value: '',
-					}));
-					setCurrentState(DropdownState.ATTRIBUTE_VALUE);
-					setSearchValue(`${currentFilterItem?.key?.key} ${value}`);
-				}
-			} else if (currentState === DropdownState.ATTRIBUTE_VALUE) {
-				const operatorType =
-					operatorTypeMapper[currentFilterItem?.op || ''] || 'NOT_VALID';
-				const isMulti = operatorType === QUERY_BUILDER_SEARCH_VALUES.MULTIPLY;
-
-				if (isMulti) {
-					const { tagKey, tagOperator, tagValue } = getTagToken(searchValue);
-					// this condition takes care of adding the IN/NIN multi values when pressed enter on an already existing value.
-					// not the best interaction but in sync with what we have today!
-					if (tagValue.includes(String(value))) {
-						setSearchValue('');
-						setCurrentState(DropdownState.ATTRIBUTE_KEY);
-						setCurrentFilterItem(undefined);
-						setTags((prev) => [
-							...prev,
-							{
-								key: currentFilterItem?.key,
-								op: currentFilterItem?.op,
-								value: tagValue,
-							} as ITag,
-						]);
-						return;
-					}
-					// this is for adding subsequent comma seperated values
-					const newSearch = [...tagValue];
-					newSearch[newSearch.length === 0 ? 0 : newSearch.length - 1] = value;
-					const newSearchValue = newSearch.join(',');
-					setSearchValue(`${tagKey} ${tagOperator} ${newSearchValue},`);
-				} else {
-					setSearchValue('');
-					setCurrentState(DropdownState.ATTRIBUTE_KEY);
-					setCurrentFilterItem(undefined);
-					setTags((prev) => [
-						...prev,
-						{
-							key: currentFilterItem?.key,
-							op: currentFilterItem?.op,
-							value,
-						} as ITag,
-					]);
-				}
-			}
-		},
-		[currentFilterItem?.key, currentFilterItem?.op, currentState, searchValue],
-	);
-
-	const handleSearch = useCallback((value: string) => {
-		setSearchValue(value);
-	}, []);
-
-	const onInputKeyDownHandler = useCallback(
-		(event: KeyboardEvent<Element>): void => {
-			if (event.key === 'Backspace' && !searchValue) {
-				event.stopPropagation();
-				setTags((prev) => prev.slice(0, -1));
-			}
-		},
-		[searchValue],
-	);
-
-	const handleOnBlur = useCallback((): void => {
-		if (searchValue) {
-			const operatorType =
-				operatorTypeMapper[currentFilterItem?.op || ''] || 'NOT_VALID';
-			// if key is added and operator is not present then convert to body CONTAINS key
-			if (
-				currentFilterItem?.key &&
-				isEmpty(currentFilterItem?.op) &&
-				whereClauseConfig?.customKey === 'body' &&
-				whereClauseConfig?.customOp === OPERATORS.CONTAINS
-			) {
-				setTags((prev) => [
-					...prev,
-					{
-						key: {
-							key: 'body',
-							dataType: DataTypes.String,
-							type: '',
-							id: 'body--string----true',
-						},
-						op: OPERATORS.CONTAINS,
-						value: currentFilterItem?.key?.key,
-					},
-				]);
-				setCurrentFilterItem(undefined);
-				setSearchValue('');
-				setCurrentState(DropdownState.ATTRIBUTE_KEY);
-			} else if (
-				currentFilterItem?.op === OPERATORS.EXISTS ||
-				currentFilterItem?.op === OPERATORS.NOT_EXISTS
-			) {
-				// is exists and not exists operator is present then convert directly to tag! no need of value here
-				setTags((prev) => [
-					...prev,
-					{
-						key: currentFilterItem?.key,
-						op: currentFilterItem?.op,
-						value: '',
-					},
-				]);
-				setCurrentFilterItem(undefined);
-				setSearchValue('');
-				setCurrentState(DropdownState.ATTRIBUTE_KEY);
-			} else if (
-				// if the current state is in sync with the kind of operator used then convert into a tag
-				validationMapper[operatorType]?.(
-					isArray(currentFilterItem?.value)
-						? currentFilterItem?.value.length || 0
-						: 1,
-				)
-			) {
-				setTags((prev) => [
-					...prev,
-					{
-						key: currentFilterItem?.key as BaseAutocompleteData,
-						op: currentFilterItem?.op as string,
-						value: currentFilterItem?.value || '',
-					},
-				]);
-				setCurrentFilterItem(undefined);
-				setSearchValue('');
-				setCurrentState(DropdownState.ATTRIBUTE_KEY);
-			}
-		}
-	}, [
-		currentFilterItem?.key,
-		currentFilterItem?.op,
-		currentFilterItem?.value,
-		searchValue,
-		whereClauseConfig?.customKey,
-		whereClauseConfig?.customOp,
-	]);
-
-	// this useEffect takes care of tokenisation based on the search state
-	useEffect(() => {
-		// if there is no search value reset to the default state
-		if (!searchValue) {
-			setCurrentFilterItem(undefined);
-			setCurrentState(DropdownState.ATTRIBUTE_KEY);
-		}
-
-		// split the current search value based on delimiters
-		const { tagKey, tagOperator, tagValue } = getTagToken(searchValue);
-
-		if (
-			// Case 1 - if key is defined but the search text doesn't match with the set key,
-			// can happen when user selects from dropdown and then deletes a few characters
-			currentFilterItem?.key &&
-			currentFilterItem?.key?.key !== tagKey.split(' ')[0]
-		) {
-			setCurrentFilterItem(undefined);
-			setCurrentState(DropdownState.ATTRIBUTE_KEY);
-		} else if (tagOperator && isEmpty(currentFilterItem?.op)) {
-			// Case 2 -> key is set and now typing for the operator
-			if (
-				tagOperator === OPERATORS.EXISTS ||
-				tagOperator === OPERATORS.NOT_EXISTS
-			) {
-				setTags((prev) => [
-					...prev,
-					{
-						key: currentFilterItem?.key,
-						op: tagOperator,
-						value: '',
-					} as ITag,
-				]);
-				setCurrentFilterItem(undefined);
-				setSearchValue('');
-				setCurrentState(DropdownState.ATTRIBUTE_KEY);
-			} else {
-				setCurrentFilterItem((prev) => ({
-					key: prev?.key as BaseAutocompleteData,
-					op: tagOperator,
-					value: '',
-				}));
-
-				setCurrentState(DropdownState.ATTRIBUTE_VALUE);
-			}
-		} else if (
-			// Case 3 -> selected operator from dropdown and then erased a part of it
-			!isEmpty(currentFilterItem?.op) &&
-			tagOperator !== currentFilterItem?.op
-		) {
-			setCurrentFilterItem((prev) => ({
-				key: prev?.key as BaseAutocompleteData,
-				op: '',
-				value: '',
-			}));
-			setCurrentState(DropdownState.OPERATOR);
-		} else if (currentState === DropdownState.ATTRIBUTE_VALUE) {
-			// Case 4 -> the final value state where we set the current filter values and the tokenisation happens on either
-			// dropdown click or blur event
-			const currentValue = {
-				key: currentFilterItem?.key as BaseAutocompleteData,
-				op: currentFilterItem?.op as string,
-				value: tagValue,
-			};
-			if (!isEqual(currentValue, currentFilterItem)) {
-				setCurrentFilterItem((prev) => ({
-					key: prev?.key as BaseAutocompleteData,
-					op: prev?.op as string,
-					value: tagValue,
-				}));
-			}
-		}
-	}, [
-		currentFilterItem,
-		currentFilterItem?.key,
-		currentFilterItem?.op,
-		searchValue,
-		currentState,
-	]);
-
-	// the useEffect takes care of setting the dropdown values correctly on change of the current state
-	useEffect(() => {
-		if (currentState === DropdownState.ATTRIBUTE_KEY) {
-			const filteredAttributeKeys = attributeKeys.filter((key) =>
-				key.key.startsWith(searchValue),
-			);
-			setDropdownOptions(
-				filteredAttributeKeys?.map(
-					(key) =>
-						({
-							label: key.key,
-							value: key,
-						}) as Option,
-				) || [],
-			);
-		}
-		if (currentState === DropdownState.OPERATOR) {
-			const keyOperator = searchValue.split(' ');
-			const partialOperator = keyOperator?.[1];
-			const strippedKey = keyOperator?.[0];
-
-			let operatorOptions;
-			if (currentFilterItem?.key?.dataType) {
-				operatorOptions = QUERY_BUILDER_OPERATORS_BY_TYPES[
-					currentFilterItem.key
-						.dataType as keyof typeof QUERY_BUILDER_OPERATORS_BY_TYPES
-				].map((operator) => ({
-					label: operator,
-					value: operator,
-				}));
-
-				if (partialOperator) {
-					operatorOptions = operatorOptions.filter((op) =>
-						op.label.startsWith(partialOperator.toLocaleUpperCase()),
-					);
-				}
-				setDropdownOptions(operatorOptions);
-			} else if (strippedKey.endsWith('[*]') && strippedKey.startsWith('body.')) {
-				operatorOptions = [OPERATORS.HAS, OPERATORS.NHAS].map((operator) => ({
-					label: operator,
-					value: operator,
-				}));
-				setDropdownOptions(operatorOptions);
-			} else {
-				operatorOptions = QUERY_BUILDER_OPERATORS_BY_TYPES.universal.map(
-					(operator) => ({
-						label: operator,
-						value: operator,
-					}),
-				);
-
-				if (partialOperator) {
-					operatorOptions = operatorOptions.filter((op) =>
-						op.label.startsWith(partialOperator.toLocaleUpperCase()),
-					);
-				}
-				setDropdownOptions(operatorOptions);
-			}
-		}
-
-		if (currentState === DropdownState.ATTRIBUTE_VALUE) {
-			const values: Array<string | number | boolean> = [];
-			const { tagValue } = getTagToken(searchValue);
-			if (isArray(tagValue)) {
-				if (!isEmpty(tagValue[tagValue.length - 1])) {
-					values.push(tagValue[tagValue.length - 1]);
-				}
-			} else if (!isEmpty(tagValue)) {
-				values.push(tagValue);
-			}
-
-			const currentAttributeValues =
-				attributeValues?.stringAttributeValues ||
-				attributeValues?.numberAttributeValues ||
-				attributeValues?.boolAttributeValues ||
-				[];
-
-			values.push(...currentAttributeValues);
-
-			if (attributeValuesMap) {
-				setDropdownOptions(
-					values.map(
-						(val) =>
-							({
-								label: checkCommaInValue(String(val)),
-								value: val,
-							}) as Option,
-					),
-				);
-			} else {
-				// If attributeValuesMap is not provided, don't set dropdown options
-				setDropdownOptions([]);
-			}
-		}
-	}, [
-		attributeValues,
-		currentFilterItem?.key?.dataType,
-		currentState,
-		attributeKeys,
-		searchValue,
-		attributeValuesMap,
-	]);
-
-	useEffect(() => {
-		const filterTags: IBuilderQuery['filters'] = {
-			op: 'AND',
-			items: [],
-		};
-		tags.forEach((tag) => {
-			const computedTagValue =
-				tag.value &&
-				Array.isArray(tag.value) &&
-				tag.value[tag.value.length - 1] === ''
-					? tag.value?.slice(0, -1)
-					: (tag.value ?? '');
-			filterTags.items.push({
-				id: tag.id || uuid().slice(0, 8),
-				key: tag.key,
-				op: getOperatorValue(tag.op),
-				value: computedTagValue,
-			});
-		});
-
-		if (!isEqual(filters, filterTags)) {
-			onChange(filterTags);
-			setTags(
-				filterTags.items.map((tag) => ({
-					...tag,
-					op: getOperatorFromValue(tag.op),
-				})) as ITag[],
-			);
-		}
-		// eslint-disable-next-line react-hooks/exhaustive-deps
-	}, [tags]);
-
-	const queryTags = useMemo(
-		() => tags.map((tag) => `${tag.key.key} ${tag.op} ${tag.value}`),
-		[tags],
-	);
-
-	const onTagRender = ({
-		value,
-		closable,
-		onClose,
-	}: CustomTagProps): React.ReactElement => {
-		const { tagOperator } = getTagToken(value);
-		const isInNin = isInNInOperator(tagOperator);
-		const chipValue = isInNin
-			? value?.trim()?.replace(/,\s*$/, '')
-			: value?.trim();
-
-		const indexInQueryTags = queryTags.findIndex((qTag) => isEqual(qTag, value));
-		const tagDetails = tags[indexInQueryTags];
-
-		const onCloseHandler = (): void => {
-			onClose();
-			setSearchValue('');
-			setTags((prev) => prev.filter((t) => !isEqual(t, tagDetails)));
-		};
-
-		const tagEditHandler = (value: string): void => {
-			setCurrentFilterItem(tagDetails);
-			setSearchValue(value);
-			setCurrentState(DropdownState.ATTRIBUTE_VALUE);
-			setTags((prev) => prev.filter((t) => !isEqual(t, tagDetails)));
-		};
-
-		const isDisabled = !!searchValue;
-
-		return (
-			<span className="qb-search-bar-tokenised-tags">
-				<Badge
-					color="vanilla"
-					className={tagDetails?.key?.type || ''}
-					closable={!searchValue && closable}
-					onClose={(e): void => {
-						e.preventDefault();
-						onCloseHandler();
-					}}
-				>
-					<Tooltip title={chipValue}>
-						<TypographyText
-							$isInNin={isInNin}
-							$isEnabled={!!searchValue}
-							$disabled={isDisabled}
-							onClick={(): void => {
-								if (!isDisabled) {
-									tagEditHandler(value);
-								}
-							}}
-						>
-							{chipValue}
-						</TypographyText>
-					</Tooltip>
-				</Badge>
-			</span>
-		);
-	};
-
-	const suffixIconContent = useMemo(() => {
-		if (suffixIcon) {
-			return suffixIcon;
-		}
-		return isOpen ? (
-			<ChevronUp
-				size={14}
-				color={isDarkMode ? Color.TEXT_VANILLA_100 : Color.TEXT_INK_100}
-			/>
-		) : (
-			<ChevronDown
-				size={14}
-				color={isDarkMode ? Color.TEXT_VANILLA_100 : Color.TEXT_INK_100}
-			/>
-		);
-	}, [isDarkMode, isOpen, suffixIcon]);
-
-	return (
-		<div className="query-builder-search-v2 ">
-			<Select
-				ref={selectRef}
-				getPopupContainer={popupContainer}
-				virtual={false}
-				showSearch
-				tagRender={onTagRender}
-				transitionName=""
-				choiceTransitionName=""
-				filterOption={false}
-				open={isOpen}
-				suffixIcon={suffixIconContent}
-				onDropdownVisibleChange={setIsOpen}
-				autoClearSearchValue={false}
-				mode="multiple"
-				placeholder={placeholder}
-				value={queryTags}
-				searchValue={searchValue}
-				className={className}
-				rootClassName="query-builder-search client-side-qb-search"
-				disabled={!attributeKeys.length}
-				style={selectStyle}
-				onSearch={handleSearch}
-				onSelect={handleDropdownSelect}
-				onInputKeyDown={onInputKeyDownHandler}
-				notFoundContent={null}
-				showAction={['focus']}
-				onBlur={handleOnBlur}
-			>
-				{dropdownOptions.map((option) => {
-					let val = option.value;
-					try {
-						if (isObject(option.value)) {
-							val = JSON.stringify(option.value);
-						} else {
-							val = option.value;
-						}
-					} catch {
-						val = option.value;
-					}
-					return (
-						<Select.Option key={isObject(val) ? `select-option` : val} value={val}>
-							<Suggestions
-								label={option.label}
-								value={option.value}
-								option={currentState}
-								searchValue={searchValue}
-							/>
-						</Select.Option>
-					);
-				})}
-			</Select>
-		</div>
-	);
-}
-
-ClientSideQBSearch.defaultProps = {
-	placeholder: PLACEHOLDER,
-	className: '',
-	suffixIcon: null,
-	whereClauseConfig: {},
-	attributeValuesMap: {},
-};
-
-export default ClientSideQBSearch;
--- a/frontend/src/components/FieldsSelector/FieldsSelector.tsx
+++ b/frontend/src/components/FieldsSelector/FieldsSelector.tsx
@@ -28,6 +28,9 @@ interface FieldsSelectorProps {
 	signal: DataSource;
 	maxFields?: number;
 	requiredFields?: readonly string[];
+	// Lets users add a free-typed field which
+	// does not show up in the suggestions
+	allowCustomFields?: boolean;
 	width?: number;
 	height?: number;
 	defaultPosition?: { x: number; y: number };
@@ -46,6 +49,7 @@ function FieldsSelectorContent({
 	signal,
 	maxFields,
 	requiredFields,
+	allowCustomFields,
 	width = DEFAULT_PANEL_WIDTH,
 	height,
 	defaultPosition,
@@ -67,7 +71,7 @@ function FieldsSelectorContent({

 	const handleInputChange = useCallback(
 		(e: React.ChangeEvent<HTMLInputElement>): void => {
-			const value = e.target.value.trim().toLowerCase();
+			const value = e.target.value.trim();
 			setInputValue(value);
 			debouncedUpdate(value);
 		},
@@ -153,6 +157,7 @@ function FieldsSelectorContent({
 					addedFields={draftFields}
 					onAdd={handleAdd}
 					isAtLimit={isAtLimit}
+					allowCustomFields={allowCustomFields}
 				/>

 				{hasUnsavedChanges && (
@@ -192,7 +197,7 @@ function FieldsSelector({
 		() =>
 			fields.map((f) => ({
 				...f,
-				key: f.key ?? buildCompositeKey(f.name, f.fieldContext),
+				key: buildCompositeKey(f.name, f.fieldContext, f.fieldDataType),
 			})),
 		[fields],
 	);
--- a/frontend/src/components/FieldsSelector/OtherFields.tsx
+++ b/frontend/src/components/FieldsSelector/OtherFields.tsx
@@ -21,6 +21,7 @@ interface OtherFieldsProps {
 	addedFields: TelemetryFieldKey[];
 	onAdd: (field: TelemetryFieldKey) => void;
 	isAtLimit: boolean;
+	allowCustomFields?: boolean;
 }

 function OtherFields({
@@ -29,6 +30,7 @@ function OtherFields({
 	addedFields,
 	onAdd,
 	isAtLimit,
+	allowCustomFields,
 }: OtherFieldsProps): JSX.Element {
 	const { data, isFetching } = useGetQueryKeySuggestions(
 		{
@@ -45,25 +47,47 @@ function OtherFields({
 		},
 	);

-	const otherFields: TelemetryFieldKey[] = useMemo(() => {
-		const suggestions = Object.values(data?.data.data.keys || {}).flat();
+	const otherFields = useMemo<TelemetryFieldKey[]>(() => {
+		const rawSuggestions = Object.values(data?.data.data.keys || {}).flat();
 		// Normalize: synthesize `key` once so downstream reads can trust it.
-		const normalizedSuggestions: TelemetryFieldKey[] = suggestions.map(
-			(attr) => ({
-				...attr,
-				key: buildCompositeKey(attr.name, attr.fieldContext as string),
-				signal: attr.signal as SignalType,
-				fieldContext: attr.fieldContext as FieldContext,
-				fieldDataType: attr.fieldDataType,
-			}),
-		);
+		const suggestions: TelemetryFieldKey[] = rawSuggestions.map((attr) => ({
+			...attr,
+			key: buildCompositeKey(attr.name, attr.fieldContext, attr.fieldDataType),
+			signal: attr.signal as SignalType,
+			fieldContext: attr.fieldContext as FieldContext,
+			fieldDataType: attr.fieldDataType,
+		}));
 		const addedIds = new Set(
-			addedFields.map((f) => f.key ?? buildCompositeKey(f.name, f.fieldContext)),
+			addedFields.map((f) =>
+				buildCompositeKey(f.name, f.fieldContext, f.fieldDataType),
+			),
 		);
-		return normalizedSuggestions.filter(
+		const available = suggestions.filter(
 			(attr) => !addedIds.has(attr.key as string),
 		);
-	}, [data, addedFields]);
+
+		// Prepend the custom field when its name is not in suggestions and
+		// not already added.
+		const typed = debouncedInputValue.trim();
+		const nameMatches = (list: TelemetryFieldKey[]): boolean =>
+			list.some((f) => f.name.toLowerCase() === typed.toLowerCase());
+		const showCustom =
+			!!allowCustomFields &&
+			typed.length > 0 &&
+			!nameMatches(suggestions) &&
+			!nameMatches(addedFields);
+
+		if (!showCustom) {
+			return available;
+		}
+		const customField: TelemetryFieldKey = {
+			name: typed,
+			fieldContext: '',
+			fieldDataType: '',
+			key: buildCompositeKey(typed, ''),
+		};
+		return [customField, ...available];
+	}, [data, addedFields, allowCustomFields, debouncedInputValue]);

 	if (isFetching) {
 		return (
--- a/frontend/src/components/FieldsSelector/tests/AddedFields.test.tsx
+++ b/frontend/src/components/FieldsSelector/tests/AddedFields.test.tsx
@@ -11,7 +11,7 @@ const makeField = (name: string, fieldContext = 'log'): TelemetryFieldKey => ({
 	signal: 'logs',
 	fieldContext: fieldContext as TelemetryFieldKey['fieldContext'],
 	fieldDataType: 'string',
-	key: `${fieldContext}.${name}`,
+	key: `${fieldContext}:${name}`,
 });

 describe('AddedFields — requiredFields', () => {
@@ -33,7 +33,7 @@ describe('AddedFields — requiredFields', () => {
 				inputValue=""
 				fields={fields}
 				onFieldsChange={jest.fn()}
-				requiredFields={['log.a', 'log.c']}
+				requiredFields={['log:a', 'log:c']}
 			/>,
 		);

@@ -50,7 +50,7 @@ describe('AddedFields — requiredFields', () => {
 				inputValue=""
 				fields={fields}
 				onFieldsChange={jest.fn()}
-				requiredFields={['log.a']}
+				requiredFields={['log:a']}
 			/>,
 		);

@@ -68,7 +68,7 @@ describe('AddedFields — requiredFields', () => {
 				inputValue=""
 				fields={fields}
 				onFieldsChange={jest.fn()}
-				requiredFields={['log.body']}
+				requiredFields={['log:body']}
 			/>,
 		);

@@ -101,11 +101,11 @@ describe('AddedFields — requiredFields', () => {
 				inputValue=""
 				fields={fields}
 				onFieldsChange={jest.fn()}
-				requiredFields={['log.body']}
+				requiredFields={['log:body']}
 			/>,
 		);

-		// 'log.body' locked, 'log.body_extra' removable.
+		// 'log:body' locked, 'log:body_extra' removable.
 		expect(screen.getAllByRole('button', { name: /remove/i })).toHaveLength(1);
 	});
 });
--- a/frontend/src/components/FieldsSelector/tests/FieldsSelector.test.tsx
+++ b/frontend/src/components/FieldsSelector/tests/FieldsSelector.test.tsx
@@ -0,0 +1,188 @@
+import { act, fireEvent, render, screen } from 'tests/test-utils';
+import { useGetQueryKeySuggestions } from 'hooks/querySuggestions/useGetQueryKeySuggestions';
+import { TelemetryFieldKey } from 'types/api/v5/queryRange';
+import { DataSource } from 'types/common/queryBuilder';
+
+import FieldsSelector from '../FieldsSelector';
+
+jest.mock('hooks/querySuggestions/useGetQueryKeySuggestions');
+
+jest.mock('@signozhq/ui/sonner', () => ({
+	...jest.requireActual('@signozhq/ui/sonner'),
+	toast: { success: jest.fn(), error: jest.fn() },
+}));
+
+// FloatingPanel is a react-rnd/portal shell — presentation only. Render its
+// children directly so the test exercises the column-editing behavior.
+jest.mock('periscope/components/FloatingPanel', () => ({
+	FloatingPanel: ({ children }: { children: React.ReactNode }): JSX.Element => (
+		<div>{children}</div>
+	),
+}));
+
+const mockSuggestions = (names: string[]): void => {
+	(useGetQueryKeySuggestions as jest.Mock).mockReturnValue({
+		data: {
+			data: {
+				data: {
+					keys: {
+						attributeKeys: names.map((name) => ({
+							name,
+							signal: 'logs',
+							fieldDataType: 'string',
+							fieldContext: '',
+						})),
+					},
+				},
+			},
+		},
+		isFetching: false,
+	});
+};
+
+const field = (name: string, fieldContext = 'log'): TelemetryFieldKey => ({
+	name,
+	signal: 'logs',
+	fieldContext: fieldContext as TelemetryFieldKey['fieldContext'],
+	fieldDataType: 'string',
+});
+
+const renderPanel = (
+	props: Partial<React.ComponentProps<typeof FieldsSelector>> = {},
+): { onFieldsChange: jest.Mock } => {
+	const onFieldsChange = jest.fn();
+	render(
+		<FieldsSelector
+			isOpen
+			title="Edit columns"
+			fields={props.fields ?? []}
+			onFieldsChange={onFieldsChange}
+			onClose={jest.fn()}
+			signal={DataSource.LOGS}
+			allowCustomFields
+			{...props}
+		/>,
+	);
+	return { onFieldsChange };
+};
+
+// Type into the search box and flush the 400ms debounce so OtherFields (driven
+// by the debounced value) recomputes.
+const typeSearch = (value: string): void => {
+	const input = screen.getByPlaceholderText('Search for a field...');
+	act(() => {
+		fireEvent.change(input, { target: { value } });
+	});
+	act(() => {
+		jest.advanceTimersByTime(400);
+	});
+};
+
+describe('FieldsSelector — edit columns (integration)', () => {
+	beforeEach(() => {
+		jest.useFakeTimers();
+		mockSuggestions([]);
+	});
+
+	afterEach(() => {
+		jest.runOnlyPendingTimers();
+		jest.useRealTimers();
+	});
+
+	it('adds a free-typed field end to end and saves the synthesized key', () => {
+		const { onFieldsChange } = renderPanel({ fields: [field('body')] });
+
+		typeSearch('orderId');
+
+		// custom option surfaces in OTHER FIELDS (only Add button, no suggestions)
+		expect(screen.getByText('orderId')).toBeInTheDocument();
+
+		act(() => {
+			fireEvent.click(screen.getByRole('button', { name: /^add$/i }));
+		});
+
+		// moved into ADDED FIELDS → OTHER FIELDS has nothing left to offer
+		expect(screen.getByText('No values found')).toBeInTheDocument();
+
+		// Save commits the draft
+		act(() => {
+			fireEvent.click(screen.getByRole('button', { name: /save changes/i }));
+		});
+
+		expect(onFieldsChange).toHaveBeenCalledTimes(1);
+		const saved = onFieldsChange.mock.calls[0][0] as TelemetryFieldKey[];
+		expect(saved).toStrictEqual(
+			expect.arrayContaining([
+				expect.objectContaining({
+					name: 'orderId',
+					fieldContext: '',
+					fieldDataType: '',
+					key: 'orderId',
+				}),
+			]),
+		);
+	});
+
+	it('adds a suggested field: it moves from OTHER FIELDS into ADDED FIELDS', () => {
+		mockSuggestions(['service.name']);
+		const { onFieldsChange } = renderPanel({ fields: [] });
+
+		const addButton = screen.getByRole('button', { name: /^add$/i });
+		act(() => {
+			fireEvent.click(addButton);
+		});
+
+		// now removable in ADDED FIELDS, no longer offered in OTHER FIELDS
+		expect(screen.getByRole('button', { name: /remove/i })).toBeInTheDocument();
+		expect(
+			screen.queryByRole('button', { name: /^add$/i }),
+		).not.toBeInTheDocument();
+
+		act(() => {
+			fireEvent.click(screen.getByRole('button', { name: /save changes/i }));
+		});
+		const saved = onFieldsChange.mock.calls[0][0] as TelemetryFieldKey[];
+		expect(saved.map((f) => f.name)).toContain('service.name');
+	});
+
+	it('hides the custom option when the typed name is already added', () => {
+		renderPanel({ fields: [field('orderId')] });
+
+		typeSearch('ORDERID');
+
+		// exact name already added → nothing left to offer in OTHER FIELDS
+		expect(screen.queryByText('ORDERID')).not.toBeInTheDocument();
+		expect(screen.getByText('No values found')).toBeInTheDocument();
+	});
+
+	it('does not offer a custom option when allowCustomFields is off', () => {
+		renderPanel({ fields: [], allowCustomFields: false });
+
+		typeSearch('unknown.a.b.c');
+
+		// no custom row and nothing addable
+		expect(screen.queryByText('unknown.a.b.c')).not.toBeInTheDocument();
+		expect(
+			screen.queryByRole('button', { name: /^add$/i }),
+		).not.toBeInTheDocument();
+	});
+
+	it('discards an added field, reverting the draft', () => {
+		const { onFieldsChange } = renderPanel({ fields: [field('body')] });
+
+		typeSearch('orderId');
+		act(() => {
+			fireEvent.click(screen.getByRole('button', { name: /^add$/i }));
+		});
+
+		// clear the search so the added list is not filtered
+		typeSearch('');
+
+		act(() => {
+			fireEvent.click(screen.getByRole('button', { name: /discard/i }));
+		});
+
+		expect(screen.queryByText('orderId')).not.toBeInTheDocument();
+		expect(onFieldsChange).not.toHaveBeenCalled();
+	});
+});
--- a/frontend/src/components/FieldsSelector/tests/OtherFields.test.tsx
+++ b/frontend/src/components/FieldsSelector/tests/OtherFields.test.tsx
@@ -0,0 +1,125 @@
+import { fireEvent, render, screen } from 'tests/test-utils';
+import { useGetQueryKeySuggestions } from 'hooks/querySuggestions/useGetQueryKeySuggestions';
+import { TelemetryFieldKey } from 'types/api/v5/queryRange';
+import { DataSource } from 'types/common/queryBuilder';
+
+import OtherFields from '../OtherFields';
+
+jest.mock('hooks/querySuggestions/useGetQueryKeySuggestions');
+
+const mockSuggestions = (names: string[]): void => {
+	(useGetQueryKeySuggestions as jest.Mock).mockReturnValue({
+		data: {
+			data: {
+				data: {
+					keys: {
+						attributeKeys: names.map((name) => ({
+							name,
+							signal: 'logs',
+							fieldDataType: 'string',
+							fieldContext: '',
+						})),
+					},
+				},
+			},
+		},
+		isFetching: false,
+	});
+};
+
+const renderOtherFields = (
+	props: Partial<React.ComponentProps<typeof OtherFields>> = {},
+): { onAdd: jest.Mock } => {
+	const onAdd = jest.fn();
+	render(
+		<OtherFields
+			signal={DataSource.LOGS}
+			debouncedInputValue=""
+			addedFields={[]}
+			onAdd={onAdd}
+			isAtLimit={false}
+			allowCustomFields
+			{...props}
+		/>,
+	);
+	return { onAdd };
+};
+
+const addedField = (name: string): TelemetryFieldKey => ({
+	name,
+	signal: 'logs',
+	fieldContext: '',
+	fieldDataType: '',
+	key: name,
+});
+
+describe('OtherFields — custom (free-typed) option', () => {
+	beforeEach(() => {
+		mockSuggestions([]);
+	});
+
+	it('shows a custom option for a typed name that is not a suggestion', () => {
+		renderOtherFields({ debouncedInputValue: 'unknown.a.b.c' });
+
+		expect(screen.getByText('unknown.a.b.c')).toBeInTheDocument();
+		expect(screen.getByRole('button', { name: /add/i })).toBeInTheDocument();
+	});
+
+	it('synthesizes the field with raw name, empty context/type, on add', () => {
+		const { onAdd } = renderOtherFields({ debouncedInputValue: 'orderId' });
+
+		fireEvent.click(screen.getByRole('button', { name: /add/i }));
+
+		expect(onAdd).toHaveBeenCalledWith({
+			name: 'orderId',
+			fieldContext: '',
+			fieldDataType: '',
+			key: 'orderId',
+		});
+	});
+
+	it('hides the custom option when an exact suggestion exists (case-insensitive)', () => {
+		mockSuggestions(['orderId']);
+		renderOtherFields({ debouncedInputValue: 'orderid' });
+
+		// the real suggestion shows, the lowercased custom name does not
+		expect(screen.getByText('orderId')).toBeInTheDocument();
+		expect(screen.queryByText('orderid')).not.toBeInTheDocument();
+	});
+
+	it('hides the custom option when the name is already added (case-insensitive)', () => {
+		renderOtherFields({
+			debouncedInputValue: 'ORDERID',
+			addedFields: [addedField('orderId')],
+		});
+
+		expect(screen.queryByText('ORDERID')).not.toBeInTheDocument();
+		expect(screen.getByText('No values found')).toBeInTheDocument();
+	});
+
+	it('does not show the custom option when allowCustomFields is off', () => {
+		renderOtherFields({
+			debouncedInputValue: 'unknown.a.b.c',
+			allowCustomFields: false,
+		});
+
+		expect(screen.queryByText('unknown.a.b.c')).not.toBeInTheDocument();
+		expect(screen.getByText('No values found')).toBeInTheDocument();
+	});
+
+	it('does not show the custom option for an empty input', () => {
+		renderOtherFields({ debouncedInputValue: '   ' });
+
+		expect(screen.getByText('No values found')).toBeInTheDocument();
+	});
+
+	it('shows the custom option at the field limit but hides its Add button', () => {
+		renderOtherFields({ debouncedInputValue: 'unknown.a.b.c', isAtLimit: true });
+
+		// same as every other row at the limit: name shown, no Add button
+		expect(screen.getByText('unknown.a.b.c')).toBeInTheDocument();
+		expect(
+			screen.queryByRole('button', { name: /add/i }),
+		).not.toBeInTheDocument();
+	});
+});
--- a/frontend/src/components/Logs/TableView/tests/useLogsTableColumns.test.tsx
+++ b/frontend/src/components/Logs/TableView/tests/useLogsTableColumns.test.tsx
@@ -14,10 +14,10 @@ jest.mock('providers/App/App', () => ({
 	useAppContext: (): { featureFlags: [] } => ({ featureFlags: [] }),
 }));

-const field = (name: string, type = ''): IField => ({
+const field = (name: string, type = '', dataType = ''): IField => ({
 	name,
 	type,
-	dataType: 'string',
+	dataType,
 });

 describe('useLogsTableColumns — selectColumns-order respected', () => {
@@ -51,13 +51,13 @@ describe('useLogsTableColumns — selectColumns-order respected', () => {
 		);

 		// body/timestamp appear where the caller placed them, keyed by their
-		// composite IDs ('log.*'); contextless user fields collapse to bare name.
+		// composite IDs ('log:*'); contextless user fields collapse to bare name.
 		expect(result.current.map((c) => c.id)).toStrictEqual([
 			'state-indicator',
 			'service.name',
-			'log.body',
+			'log:body',
 			'request.id',
-			'log.timestamp',
+			'log:timestamp',
 		]);
 	});

@@ -70,14 +70,14 @@ describe('useLogsTableColumns — selectColumns-order respected', () => {
 		);

 		const byId = new Map(result.current.map((c) => [c.id, c]));
-		// Attribute variant is its own column, not a duplicate 'log.body'.
+		// Attribute variant is its own column, not a duplicate 'log:body'.
 		expect(result.current.map((c) => c.id)).toStrictEqual([
 			'state-indicator',
-			'log.body',
-			'attribute.body',
+			'log:body',
+			'attribute:body',
 		]);
-		expect(byId.get('log.body')?.enableRemove).toBe(false);
-		expect(byId.get('attribute.body')?.enableRemove).toBe(true);
+		expect(byId.get('log:body')?.enableRemove).toBe(false);
+		expect(byId.get('attribute:body')?.enableRemove).toBe(true);
 	});

 	it('applies the same distinct-column treatment to timestamp variants', () => {
@@ -91,11 +91,11 @@ describe('useLogsTableColumns — selectColumns-order respected', () => {
 		const byId = new Map(result.current.map((c) => [c.id, c]));
 		expect(result.current.map((c) => c.id)).toStrictEqual([
 			'state-indicator',
-			'log.timestamp',
-			'attribute.timestamp',
+			'log:timestamp',
+			'attribute:timestamp',
 		]);
-		expect(byId.get('log.timestamp')?.enableRemove).toBe(false);
-		expect(byId.get('attribute.timestamp')?.enableRemove).toBe(true);
+		expect(byId.get('log:timestamp')?.enableRemove).toBe(false);
+		expect(byId.get('attribute:timestamp')?.enableRemove).toBe(true);
 	});

 	it('skips the synthetic "id" field name', () => {
@@ -127,15 +127,33 @@ describe('useLogsTableColumns — selectColumns-order respected', () => {

 		const byId = new Map(result.current.map((c) => [c.id, c]));
 		// body + timestamp are locked from the table-X removal pathway.
-		expect(byId.get('log.body')?.canBeHidden).toBe(false);
-		expect(byId.get('log.body')?.enableRemove).toBe(false);
-		expect(byId.get('log.timestamp')?.canBeHidden).toBe(false);
-		expect(byId.get('log.timestamp')?.enableRemove).toBe(false);
+		expect(byId.get('log:body')?.canBeHidden).toBe(false);
+		expect(byId.get('log:body')?.enableRemove).toBe(false);
+		expect(byId.get('log:timestamp')?.canBeHidden).toBe(false);
+		expect(byId.get('log:timestamp')?.enableRemove).toBe(false);
 		// User-added fields stay removable. User field has type='' so composite
 		// collapses to bare name.
 		expect(byId.get('user_field')?.enableRemove).toBe(true);
 	});

+	it('disambiguates same-name/same-context fields by dataType (3-part id)', () => {
+		const { result } = renderHook(() =>
+			useLogsTableColumns({
+				fields: [
+					field('http.status_code', 'attribute', 'int64'),
+					field('http.status_code', 'attribute', 'string'),
+				],
+				fontSize: FontSize.SMALL,
+			}),
+		);
+
+		expect(result.current.map((c) => c.id)).toStrictEqual([
+			'state-indicator',
+			'attribute:http.status_code:int64',
+			'attribute:http.status_code:string',
+		]);
+	});
+
 	it('renders only the stateIndicator when fields is empty', () => {
 		const { result } = renderHook(() =>
 			useLogsTableColumns({
--- a/frontend/src/components/Logs/TableView/useLogsTableColumns.tsx
+++ b/frontend/src/components/Logs/TableView/useLogsTableColumns.tsx
@@ -92,7 +92,7 @@ export function useLogsTableColumns({
 		};

 		const makeUserFieldCol = (f: IField): TableColumnDef<ILog> => ({
-			id: buildCompositeKey(f.name, f.type),
+			id: buildCompositeKey(f.name, f.type, f.dataType),
 			header: f.name,
 			accessorFn: (log): unknown =>
 				getLogFieldValue(log, f.name, isBodyJsonEnabled),
--- a/frontend/src/components/QueryBuilderV2/utils.ts
+++ b/frontend/src/components/QueryBuilderV2/utils.ts
@@ -8,7 +8,7 @@ import {
 	OPERATORS,
 	QUERY_BUILDER_FUNCTIONS,
 } from 'constants/antlrQueryConstants';
-import { getOperatorValue } from 'container/QueryBuilder/filters/QueryBuilderSearch/utils';
+import { getOperatorValue } from 'container/QueryBuilder/filters/QueryBuilderSearchV2/utils';
 import FilterQueryLexer from 'parser/FilterQueryLexer';
 import FilterQueryParser, {
 	AndExpressionContext,
--- a/frontend/src/components/QuickFilters/FilterRenderers/Checkbox/checkboxFilterQuery.ts
+++ b/frontend/src/components/QuickFilters/FilterRenderers/Checkbox/checkboxFilterQuery.ts
@@ -5,7 +5,7 @@ import {
 	QuickFiltersSource,
 } from 'components/QuickFilters/types';
 import { OPERATORS } from 'constants/antlrQueryConstants';
-import { getOperatorValue } from 'container/QueryBuilder/filters/QueryBuilderSearch/utils';
+import { getOperatorValue } from 'container/QueryBuilder/filters/QueryBuilderSearchV2/utils';
 import { cloneDeep, isArray } from 'lodash-es';
 import { Query, TagFilterItem } from 'types/api/queryBuilder/queryBuilderData';
 import { v4 as uuid } from 'uuid';
--- a/frontend/src/components/TanStackTableView/TanStackHeaderRow.module.scss
+++ b/frontend/src/components/TanStackTableView/TanStackHeaderRow.module.scss
@@ -44,6 +44,13 @@
 			--tanstack-first-column-header-bg,
 			var(--tanstack-table-header-cell-bg, var(--l2-background))
 		) !important;
+		padding-left: var(
+			--tanstack-cell-header-padding-left-first-column,
+			var(
+				--tanstack-cell-header-padding-left-override,
+				var(--tanstack-cell-padding-left, 0.3rem)
+			)
+		);
 	}
 }

--- a/frontend/src/components/TanStackTableView/TanStackTable.module.scss
+++ b/frontend/src/components/TanStackTableView/TanStackTable.module.scss
@@ -161,7 +161,7 @@
 .tableHeaderCell {
 	padding: var(--tanstack-cell-padding-top) var(--tanstack-cell-padding-right)
 		var(--tanstack-cell-padding-bottom) var(--tanstack-cell-padding-left);
-	height: 36px;
+	height: var(--tanstack-table-header-height, 36px);
 	text-align: left;
 	font-size: 14px;
 	font-style: normal;
--- a/frontend/src/components/TanStackTableView/TanStackTable.tsx
+++ b/frontend/src/components/TanStackTableView/TanStackTable.tsx
@@ -664,6 +664,7 @@ function TanStackTableInner<TData, TItemKey = string>(
 										value={limit?.toString()}
 										defaultValue="10"
 										onChange={(value): void => {
+											value ??= '10';
 											setLimit(+value);
 											pagination.onLimitChange?.(+value);
 											if (page !== 1) {
--- a/frontend/src/components/TanStackTableView/tests/useStableTotalCount.test.ts
+++ b/frontend/src/components/TanStackTableView/tests/useStableTotalCount.test.ts
@@ -0,0 +1,91 @@
+import { renderHook } from '@testing-library/react';
+
+import {
+	useStableTotalCount,
+	UseStableTotalCountParams,
+} from '../useStableTotalCount';
+
+function renderStableTotalCount(initial: UseStableTotalCountParams): {
+	result: { current: number };
+	rerender: (next: UseStableTotalCountParams) => void;
+} {
+	const { result, rerender } = renderHook(
+		(params: UseStableTotalCountParams) => useStableTotalCount(params),
+		{ initialProps: initial },
+	);
+
+	return { result, rerender };
+}
+
+describe('useStableTotalCount', () => {
+	it('reports the total once the load settles', () => {
+		const { result } = renderStableTotalCount({
+			total: 100,
+			isLoading: false,
+			resetKey: 'pods',
+		});
+
+		expect(result.current).toBe(100);
+	});
+
+	it('keeps the last count while the same list refetches', () => {
+		const { result, rerender } = renderStableTotalCount({
+			total: 100,
+			isLoading: false,
+			resetKey: 'pods',
+		});
+
+		rerender({ total: 0, isLoading: true, resetKey: 'pods' });
+
+		expect(result.current).toBe(100);
+	});
+
+	it('forgets the count when the list changes', () => {
+		const { result, rerender } = renderStableTotalCount({
+			total: 100,
+			isLoading: false,
+			resetKey: 'pods',
+		});
+
+		rerender({ total: 0, isLoading: true, resetKey: 'nodes' });
+
+		expect(result.current).toBe(0);
+	});
+
+	it('reports the new list total once it arrives', () => {
+		const { result, rerender } = renderStableTotalCount({
+			total: 100,
+			isLoading: false,
+			resetKey: 'pods',
+		});
+
+		rerender({ total: 0, isLoading: true, resetKey: 'nodes' });
+		rerender({ total: 25, isLoading: false, resetKey: 'nodes' });
+
+		expect(result.current).toBe(25);
+	});
+
+	it('reports zero for a list that is genuinely empty', () => {
+		const { result } = renderStableTotalCount({
+			total: 0,
+			isLoading: false,
+			resetKey: 'pods',
+		});
+
+		expect(result.current).toBe(0);
+	});
+
+	it('holds nothing back when no reset key is given', () => {
+		const { result, rerender } = renderStableTotalCount({
+			total: 100,
+			isLoading: false,
+			resetKey: undefined,
+		});
+
+		// Without a key there is no context to compare, so the cache behaves as it
+		// always did: it survives the refetch.
+		rerender({ total: 0, isLoading: true, resetKey: undefined });
+
+		expect(result.current).toBe(100);
+	});
+});
--- a/frontend/src/components/TanStackTableView/useStableTotalCount.ts
+++ b/frontend/src/components/TanStackTableView/useStableTotalCount.ts
@@ -0,0 +1,35 @@
+import { useRef } from 'react';
+
+export type UseStableTotalCountParams = {
+	total: number | undefined;
+	isLoading: boolean;
+	/**
+	 * Identifies the list being counted. When it changes, the cached count is
+	 * dropped so the previous list's page count cannot outlive it.
+	 */
+	resetKey: string | undefined;
+};
+
+/**
+ * Holds on to the last non-zero total so the pagination does not flash while the
+ * same list refetches, and forgets it as soon as `resetKey` moves to another list.
+ */
+export function useStableTotalCount({
+	total,
+	isLoading,
+	resetKey,
+}: UseStableTotalCountParams): number {
+	const prevTotalRef = useRef(total || 0);
+	const prevResetKeyRef = useRef(resetKey);
+
+	if (prevResetKeyRef.current !== resetKey) {
+		prevResetKeyRef.current = resetKey;
+		prevTotalRef.current = 0;
+	}
+
+	if (total && total > 0) {
+		prevTotalRef.current = total;
+	}
+
+	return isLoading ? prevTotalRef.current : total || 0;
+}
--- a/frontend/src/constants/localStorage.ts
+++ b/frontend/src/constants/localStorage.ts
@@ -11,6 +11,7 @@ export enum LOCALSTORAGE {
 	TRACES_LIST_OPTIONS = 'TRACES_LIST_OPTIONS',
 	GRAPH_VISIBILITY_STATES = 'GRAPH_VISIBILITY_STATES',
 	TRACES_LIST_COLUMNS = 'TRACES_LIST_COLUMNS',
+	TRACES_VIEW_COLUMNS = 'TRACES_VIEW_COLUMNS',
 	LOGS_LIST_COLUMNS = 'LOGS_LIST_COLUMNS',
 	LOGS_LIST_COLUMN_SIZING = 'LOGS_LIST_COLUMN_SIZING',
 	LOGGED_IN_USER_NAME = 'LOGGED_IN_USER_NAME',
--- a/frontend/src/container/AlertHistory/AlertPopover/AlertPopover.tsx
+++ b/frontend/src/container/AlertHistory/AlertPopover/AlertPopover.tsx
@@ -29,6 +29,7 @@ function PopoverContent({
 				<Link
 					to={`${ROUTES.LOGS_EXPLORER}?${relatedLogsLink}`}
 					className="contributor-row-popover-buttons__button"
+					data-testid="alert-popover-view-logs"
 				>
 					<div className="icon">
 						<LogsIcon />
@@ -40,6 +41,7 @@ function PopoverContent({
 				<Link
 					to={`${ROUTES.TRACES_EXPLORER}?${relatedTracesLink}`}
 					className="contributor-row-popover-buttons__button"
+					data-testid="alert-popover-view-traces"
 				>
 					<div className="icon">
 						<DraftingCompass
--- a/frontend/src/container/AlertHistory/Statistics/StatsCard/StatsCard.tsx
+++ b/frontend/src/container/AlertHistory/Statistics/StatsCard/StatsCard.tsx
@@ -26,7 +26,10 @@ function ChangePercentage({
 }: ChangePercentageProps): JSX.Element {
 	if (direction > 0) {
 		return (
-			<div className="change-percentage change-percentage--success">
+			<div
+				className="change-percentage change-percentage--success"
+				data-testid="stats-card-change"
+			>
 				<div className="change-percentage__icon">
 					<ArrowDownLeft size={14} color={Color.BG_FOREST_500} />
 				</div>
@@ -38,7 +41,10 @@ function ChangePercentage({
 	}
 	if (direction < 0) {
 		return (
-			<div className="change-percentage change-percentage--error">
+			<div
+				className="change-percentage change-percentage--error"
+				data-testid="stats-card-change"
+			>
 				<div className="change-percentage__icon">
 					<ArrowUpRight size={14} color={Color.BG_CHERRY_500} />
 				</div>
@@ -50,7 +56,10 @@ function ChangePercentage({
 	}

 	return (
-		<div className="change-percentage change-percentage--no-previous-data">
+		<div
+			className="change-percentage change-percentage--no-previous-data"
+			data-testid="stats-card-change"
+		>
 			<div className="change-percentage__label">no previous data</div>
 		</div>
 	);
@@ -103,7 +112,12 @@ function StatsCard({
 	const formattedEndTimeForTooltip = convertTimestampToLocaleDateString(endTime);

 	return (
-		<div className={`stats-card ${isEmpty ? 'stats-card--empty' : ''}`}>
+		<div
+			className={`stats-card ${isEmpty ? 'stats-card--empty' : ''}`}
+			data-testid="stats-card"
+			data-stats-title={title}
+			data-empty={isEmpty ? 'true' : 'false'}
+		>
 			<div className="stats-card__title-wrapper">
 				<div className="title">{title}</div>
 				<div className="duration-indicator">
@@ -123,7 +137,7 @@ function StatsCard({
 			</div>

 			<div className="stats-card__stats">
-				<div className="count-label">
+				<div className="count-label" data-testid="stats-card-value">
 					{isEmpty ? emptyMessage : displayValue || totalCurrentCount}
 				</div>

--- a/frontend/src/container/AlertHistory/Statistics/StatsCard/StatsGraph/StatsGraph.tsx
+++ b/frontend/src/container/AlertHistory/Statistics/StatsCard/StatsGraph/StatsGraph.tsx
@@ -81,7 +81,11 @@ function StatsGraph({ timeSeries, changeDirection }: Props): JSX.Element {
 	);

 	return (
-		<div style={{ height: '100%', width: '100%' }} ref={graphRef}>
+		<div
+			style={{ height: '100%', width: '100%' }}
+			ref={graphRef}
+			data-testid="stats-card-sparkline"
+		>
 			<Uplot data={[xData, yData]} options={options} />
 		</div>
 	);
--- a/frontend/src/container/AlertHistory/Statistics/TopContributorsCard/TopContributorsCard.tsx
+++ b/frontend/src/container/AlertHistory/Statistics/TopContributorsCard/TopContributorsCard.tsx
@@ -48,11 +48,16 @@ function TopContributorsCard({

 	return (
 		<>
-			<div className="top-contributors-card">
+			<div className="top-contributors-card" data-testid="top-contributors-card">
 				<div className="top-contributors-card__header">
 					<div className="title">top contributors</div>
 					{topContributorsData.length > 3 && (
-						<Button type="text" className="view-all" onClick={toggleViewAllDrawer}>
+						<Button
+							type="text"
+							className="view-all"
+							onClick={toggleViewAllDrawer}
+							data-testid="top-contributors-view-all"
+						>
 							<div className="label">View all</div>
 							<div className="icon">
 								<ArrowRight
--- a/frontend/src/container/AlertHistory/Statistics/TopContributorsCard/TopContributorsRows.tsx
+++ b/frontend/src/container/AlertHistory/Statistics/TopContributorsCard/TopContributorsRows.tsx
@@ -68,7 +68,10 @@ function TopContributorsRows({
 					relatedTracesLink={record.relatedTracesLink}
 					relatedLogsLink={record.relatedLogsLink}
 				>
-					<div className="total-contribution">
+					<div
+						className="total-contribution"
+						data-testid="top-contributors-row-count"
+					>
 						{count}/{totalCurrentTriggers}
 					</div>
 				</ConditionalAlertPopover>
@@ -78,7 +81,10 @@ function TopContributorsRows({

 	const handleRowClick = (
 		record: AlertRuleTopContributors,
-	): HTMLAttributes<AlertRuleTimelineTableResponse> => ({
+	): HTMLAttributes<AlertRuleTimelineTableResponse> & {
+		'data-testid': string;
+	} => ({
+		'data-testid': 'top-contributors-row',
 		onClick: (): void => {
 			logEvent('Alert history: Top contributors row: Clicked', {
 				labels: record.labels,
--- a/frontend/src/container/AlertHistory/Statistics/TopContributorsCard/ViewAllDrawer.tsx
+++ b/frontend/src/container/AlertHistory/Statistics/TopContributorsCard/ViewAllDrawer.tsx
@@ -31,7 +31,10 @@ function ViewAllDrawer({
 			}}
 			title="Viewing All Contributors"
 		>
-			<div className="top-contributors-card--view-all">
+			<div
+				className="top-contributors-card--view-all"
+				data-testid="top-contributors-drawer"
+			>
 				<div className="top-contributors-card__content">
 					<TopContributorsRows
 						topContributors={topContributorsData}
--- a/frontend/src/container/AlertHistory/Timeline/GraphWrapper/GraphWrapper.tsx
+++ b/frontend/src/container/AlertHistory/Timeline/GraphWrapper/GraphWrapper.tsx
@@ -32,8 +32,8 @@ function GraphWrapper({
 	}, [data?.data]);

 	return (
-		<div className="timeline-graph">
-			<div className="timeline-graph__title">
+		<div className="timeline-graph" data-testid="timeline-graph">
+			<div className="timeline-graph__title" data-testid="timeline-graph-title">
 				{totalCurrentTriggers} triggers in {relativeTime}
 			</div>
 			<div className="timeline-graph__chart">
--- a/frontend/src/container/AlertHistory/Timeline/Table/Table.tsx
+++ b/frontend/src/container/AlertHistory/Timeline/Table/Table.tsx
@@ -118,7 +118,10 @@ function TimelineTableContent(): JSX.Element {

 	const handleRowClick = (
 		record: AlertRuleTimelineTableResponse,
-	): HTMLAttributes<AlertRuleTimelineTableResponse> => ({
+	): HTMLAttributes<AlertRuleTimelineTableResponse> & {
+		'data-testid': string;
+	} => ({
+		'data-testid': 'timeline-row',
 		onClick: (): void => {
 			void logEvent('Alert history: Timeline table row: Clicked', {
 				ruleId: record.ruleID,
@@ -128,12 +131,15 @@ function TimelineTableContent(): JSX.Element {
 	});

 	return (
-		<div className="timeline-table">
+		<div className="timeline-table" data-testid="timeline-table">
 			{/* If we don't wait to have the keys, the QuerySearch will not render them at first usage */}
 			{!isLoadingKeys && hardcodedAttributeKeys ? (
 				<div className="timeline-table__filter">
 					<div className="timeline-table__filter-row">
-						<div className="timeline-table__filter-search">
+						<div
+							className="timeline-table__filter-search"
+							data-testid="timeline-filter-search"
+						>
 							<QuerySearch
 								onChange={querySearchOnChange}
 								queryData={queryData}
@@ -155,6 +161,7 @@ function TimelineTableContent(): JSX.Element {
 					<Skeleton.Input
 						className="timeline-table__filter--loading-skeleton"
 						active
+						data-testid="timeline-filter-skeleton"
 					/>
 				</div>
 			)}
@@ -172,14 +179,17 @@ function TimelineTableContent(): JSX.Element {
 				locale={{
 					emptyText:
 						isError && apiError ? (
-							<div className="timeline-table__error">
+							<div className="timeline-table__error" data-testid="timeline-error">
 								<ErrorContent error={apiError} />
 							</div>
 						) : undefined,
 				}}
 				footer={(): JSX.Element => (
 					<div className="timeline-table__pagination">
-						<div className="timeline-table__pagination-info">
+						<div
+							className="timeline-table__pagination-info"
+							data-testid="timeline-footer-range"
+						>
 							{paginationConfig.showTotal?.(totalItems, [
 								totalItems === 0
 									? 0
--- a/frontend/src/container/AlertHistory/Timeline/Table/useTimelineTable.tsx
+++ b/frontend/src/container/AlertHistory/Timeline/Table/useTimelineTable.tsx
@@ -21,18 +21,14 @@ export const timelineTableColumns = ({
 		sorter: true,
 		width: 140,
 		render: (value): JSX.Element => (
-			<div className="alert-rule-state">
-				<AlertState state={value} showLabel />
-			</div>
+			<AlertState state={value} showLabel testId="timeline-row-state" />
 		),
 	},
 	{
 		title: 'LABELS',
 		dataIndex: 'labels',
 		render: (labels): JSX.Element => (
-			<div className="alert-rule-labels">
-				<AlertLabels labels={labels} />
-			</div>
+			<AlertLabels labels={labels} testId="timeline-row-labels" />
 		),
 	},
 	{
@@ -40,7 +36,10 @@ export const timelineTableColumns = ({
 		dataIndex: 'unixMilli',
 		width: 200,
 		render: (value): JSX.Element => (
-			<div className="alert-rule__created-at">
+			<div
+				className="alert-rule__created-at"
+				data-testid="timeline-row-created-at"
+			>
 				{formatTimezoneAdjustedTimestamp(value, DATE_TIME_FORMATS.DASH_DATETIME)}
 			</div>
 		),
@@ -53,7 +52,7 @@ export const timelineTableColumns = ({
 			if (!record.relatedTracesLink && !record.relatedLogsLink) {
 				return (
 					<Tooltip title="No links available for this item">
-						<Button type="text" ghost disabled>
+						<Button type="text" ghost disabled data-testid="timeline-row-actions">
 							<Ellipsis className="dropdown-icon" size="md" />
 						</Button>
 					</Tooltip>
@@ -65,7 +64,7 @@ export const timelineTableColumns = ({
 					relatedTracesLink={record.relatedTracesLink ?? ''}
 					relatedLogsLink={record.relatedLogsLink ?? ''}
 				>
-					<Button type="text" ghost>
+					<Button type="text" ghost data-testid="timeline-row-actions">
 						<Ellipsis className="dropdown-icon" size="md" />
 					</Button>
 				</ConditionalAlertPopover>
--- a/frontend/src/container/AlertHistory/Timeline/TabsAndFilters/TabsAndFilters.tsx
+++ b/frontend/src/container/AlertHistory/Timeline/TabsAndFilters/TabsAndFilters.tsx
@@ -23,6 +23,7 @@ function TimelineTabs(): JSX.Element {
 		{
 			value: TimelineTab.OVERALL_STATUS,
 			label: 'Overall Status',
+			testId: 'timeline-tab-overall-status',
 		},
 		{
 			value: TimelineTab.TOP_5_CONTRIBUTORS,
@@ -33,6 +34,7 @@ function TimelineTabs(): JSX.Element {
 				</div>
 			),
 			disabled: true,
+			testId: 'timeline-tab-top-contributors',
 		},
 	];

@@ -57,14 +59,17 @@ function TimelineFilters(): JSX.Element {
 		{
 			value: TimelineFilter.ALL,
 			label: 'All',
+			testId: 'timeline-filter-all',
 		},
 		{
 			value: TimelineFilter.FIRED,
 			label: 'Fired',
+			testId: 'timeline-filter-fired',
 		},
 		{
 			value: TimelineFilter.RESOLVED,
 			label: 'Resolved',
+			testId: 'timeline-filter-resolved',
 		},
 	];

--- a/frontend/src/container/BillingContainer/BillingUsageGraph/BillingUsageGraph.tsx
+++ b/frontend/src/container/BillingContainer/BillingUsageGraph/BillingUsageGraph.tsx
@@ -5,6 +5,7 @@ import BarChart from 'container/DashboardContainer/visualization/charts/BarChart
 import { useIsDarkMode } from 'hooks/useDarkMode';
 import { useResizeObserver } from 'hooks/useDimensions';
 import { prepareChartData } from 'lib/uPlotV2/utils/dataUtils';
+import { StackMode } from 'lib/uPlotV2/config/types';
 import {
 	LegendPosition,
 	TooltipRenderArgs,
@@ -131,9 +132,9 @@ export function BillingUsageGraph(props: BillingUsageGraphProps): JSX.Element {
 			<div ref={graphRef} className={styles.graphContainer}>
 				{containerDimensions.width > 0 && containerDimensions.height > 0 && (
 					<BarChart
+						stack={StackMode.Normal}
 						config={config}
 						data={chartData}
-						isStackedBarChart
 						legendConfig={{ position: LegendPosition.BOTTOM }}
 						customTooltip={renderBillingTooltip}
 						width={containerDimensions.width}
--- a/frontend/src/container/BillingContainer/BillingUsageGraph/tests/prepareBillingBarConfig.test.ts
+++ b/frontend/src/container/BillingContainer/BillingUsageGraph/tests/prepareBillingBarConfig.test.ts
@@ -58,26 +58,17 @@ describe('prepareBillingBarConfig', () => {
 		expect(config.series?.[4]?.stroke).toBe(Color.BG_AMBER_500);
 	});

-	it('sets stacking bands, padding, and focus alpha for behavioral parity', () => {
+	it('sets padding and focus alpha for behavioral parity', () => {
 		const builder = prepareBillingBarConfig({
 			...baseProps,
 			apiResponse: makeApiResponse(['Logs', 'Traces', 'Metrics']),
 		});
 		const config = builder.getConfig();
-		expect(config.bands).toStrictEqual([{ series: [1, 2] }, { series: [2, 3] }]);
+		// Stacking bands come from the chart now — see useChartStacking.
 		expect(config.padding).toStrictEqual([32, 32, 16, 16]);
 		expect(config.focus).toStrictEqual({ alpha: 0.3 });
 	});

-	it('sets no bands when result is empty', () => {
-		const builder = prepareBillingBarConfig({
-			...baseProps,
-			apiResponse: makeApiResponse([]),
-		});
-		const config = builder.getConfig();
-		expect(config.bands).toBeUndefined();
-	});
-
 	it('uses queryName as label when legend is undefined', () => {
 		const apiResponse: MetricRangePayloadProps = {
 			data: {
--- a/frontend/src/container/BillingContainer/BillingUsageGraph/prepareBillingBarConfig.ts
+++ b/frontend/src/container/BillingContainer/BillingUsageGraph/prepareBillingBarConfig.ts
@@ -1,7 +1,6 @@
 import { Color } from '@signozhq/design-tokens';
 import type { Timezone } from 'components/CustomTimePicker/timezoneUtils';
 import { PANEL_TYPES } from 'constants/queryBuilder';
-import { getInitialStackedBands } from 'container/DashboardContainer/visualization/charts/utils/stackSeriesUtils';
 import { buildBaseConfig } from 'container/DashboardContainer/visualization/panels/utils/baseConfigBuilder';
 import { DrawStyle } from 'lib/uPlotV2/config/types';
 import type { UPlotConfigBuilder } from 'lib/uPlotV2/config/UPlotConfigBuilder';
@@ -63,7 +62,6 @@ export function prepareBillingBarConfig({
 		});
 	});

-	builder.setBands(getInitialStackedBands(results.length));
 	builder.setPadding([32, 32, 16, 16]);
 	builder.setFocus({ alpha: 0.3 });

--- a/frontend/src/container/Controls/Controls.module.scss
+++ b/frontend/src/container/Controls/Controls.module.scss
@@ -0,0 +1,6 @@
+.container {
+	display: flex;
+	align-items: center;
+	gap: 0.5rem;
+	--button-font-size: var(--periscope-font-size-base, 13px);
+}
--- a/frontend/src/container/Controls/index.tsx
+++ b/frontend/src/container/Controls/index.tsx
@@ -1,11 +1,12 @@
 import { memo, useMemo } from 'react';
 import { ChevronLeft, ChevronRight } from '@signozhq/icons';
-import { Button, Flex, Select } from 'antd';
+import { Button } from '@signozhq/ui/button';
+import { Select } from 'antd';
 import { DEFAULT_PER_PAGE_OPTIONS, Pagination } from 'hooks/queryPagination';
 import { popupContainer } from 'utils/selectPopupContainer';

 import { defaultSelectStyle } from './config';
-import { Container } from './styles';
+import styles from './Controls.module.scss';

 function Controls({
 	offset = 0,
@@ -34,28 +35,24 @@ function Controls({
 	);

 	return (
-		<Container>
+		<div className={styles.container}>
 			<Button
-				loading={isLoading}
-				size="small"
-				type="link"
+				variant="link"
+				size="md"
 				disabled={isPreviousDisabled}
+				prefix={<ChevronLeft size={16} />}
 				onClick={handleNavigatePrevious}
 			>
-				<Flex align="center" gap="4px">
-					<ChevronLeft size={16} /> Previous
-				</Flex>
+				Previous
 			</Button>
 			<Button
-				loading={isLoading}
-				size="small"
-				type="link"
+				variant="link"
+				size="md"
 				disabled={isNextDisabled}
+				suffix={<ChevronRight size={16} />}
 				onClick={handleNavigateNext}
 			>
-				<Flex align="center" gap="4px">
-					Next <ChevronRight size={16} />
-				</Flex>
+				Next
 			</Button>

 			{showSizeChanger && (
@@ -74,7 +71,7 @@ function Controls({
 					))}
 				</Select>
 			)}
-		</Container>
+		</div>
 	);
 }

--- a/frontend/src/container/Controls/styles.ts
+++ b/frontend/src/container/Controls/styles.ts
@@ -1,7 +0,0 @@
-import styled from 'styled-components';
-
-export const Container = styled.div`
-	display: flex;
-	align-items: center;
-	gap: 0.5rem;
-`;
--- a/frontend/src/container/CreateAlertV2/EvaluationSettings/AdvancedOptions.tsx
+++ b/frontend/src/container/CreateAlertV2/EvaluationSettings/AdvancedOptions.tsx
@@ -34,6 +34,7 @@ function AdvancedOptions(): JSX.Element {
 										})
 									}
 									value={advancedOptions.sendNotificationIfDataIsMissing.toleranceLimit}
+									testId="send-notification-if-data-is-missing-input"
 								/>
 								<Typography.Text>Minutes</Typography.Text>
 							</div>
@@ -66,6 +67,7 @@ function AdvancedOptions(): JSX.Element {
 										})
 									}
 									value={advancedOptions.enforceMinimumDatapoints.minimumDatapoints}
+									testId="enforce-minimum-datapoints-input"
 								/>
 								<Typography.Text>Datapoints</Typography.Text>
 							</div>
--- a/frontend/src/container/CreateAlertV2/EvaluationSettings/EvaluationWindowPopover/EvaluationWindowPopover.tsx
+++ b/frontend/src/container/CreateAlertV2/EvaluationSettings/EvaluationWindowPopover/EvaluationWindowPopover.tsx
@@ -66,6 +66,7 @@ function EvaluationWindowPopover({
 						tabIndex={0}
 						data-value={option.value}
 						data-section-id={sectionId}
+						data-testid={`${sectionId}-option-${option.value}`}
 						onClick={(): void => onChange(option.value)}
 						onKeyDown={(e): void => {
 							if (e.key === 'Enter' || e.key === ' ') {
--- a/frontend/src/container/CreateAlertV2/Footer/Footer.tsx
+++ b/frontend/src/container/CreateAlertV2/Footer/Footer.tsx
@@ -186,6 +186,7 @@ function Footer(): JSX.Element {
 				color="primary"
 				onClick={handleSaveAlert}
 				disabled={disableButtons || Boolean(alertValidationMessage)}
+				testId="save-alert-rule-button"
 			>
 				{isCreatingAlertRule || isUpdatingAlertRule ? (
 					<Loader data-testid="save-alert-rule-loader-icon" size={14} />
@@ -218,6 +219,7 @@ function Footer(): JSX.Element {
 				color="secondary"
 				onClick={handleTestNotification}
 				disabled={disableButtons || Boolean(alertValidationMessage)}
+				testId="test-notification-button"
 			>
 				{isTestingAlertRule ? (
 					<Loader data-testid="test-notification-loader-icon" size={14} />
@@ -249,6 +251,7 @@ function Footer(): JSX.Element {
 				color="secondary"
 				onClick={handleDiscard}
 				disabled={disableButtons}
+				testId="discard-alert-rule-button"
 			>
 				<X size={14} /> Discard
 			</Button>
--- a/frontend/src/container/DashboardContainer/visualization/charts/BarChart/BarChart.tsx
+++ b/frontend/src/container/DashboardContainer/visualization/charts/BarChart/BarChart.tsx
@@ -6,25 +6,24 @@ import {
 	TooltipRenderArgs,
 } from 'lib/uPlotV2/components/types';

-import { useBarChartStacking } from '../../hooks/useBarChartStacking';
+import { StackMode } from 'lib/uPlotV2/config/types';
+
 import { BarChartProps } from '../types';

 export default function BarChart(props: BarChartProps): JSX.Element {
 	const {
 		children,
-		isStackedBarChart,
 		customTooltip,
 		config,
 		data,
+		stack = StackMode.None,
 		pinnedTooltipElement,
 		...rest
 	} = props;

-	const chartData = useBarChartStacking({
-		data,
-		isStackedBarChart,
-		config,
-	});
+	// Written during render so it lands before UPlotChart's effect reads the config,
+	// which derives the fill bands, percent axis unit and percent range from it.
+	config.setStackMode(stack);

 	const renderTooltip = useCallback(
 		(props: TooltipRenderArgs): React.ReactNode => {
@@ -37,7 +36,6 @@ export default function BarChart(props: BarChartProps): JSX.Element {
 				timezone: rest.timezone,
 				yAxisUnit: rest.yAxisUnit,
 				decimalPrecision: rest.decimalPrecision,
-				isStackedBarChart: isStackedBarChart,
 				canPinTooltip: rest.canPinTooltip,
 				renderTooltipFooter: rest.renderTooltipFooter,
 			};
@@ -48,7 +46,6 @@ export default function BarChart(props: BarChartProps): JSX.Element {
 			rest.timezone,
 			rest.yAxisUnit,
 			rest.decimalPrecision,
-			isStackedBarChart,
 			rest.canPinTooltip,
 			rest.renderTooltipFooter,
 		],
@@ -58,7 +55,7 @@ export default function BarChart(props: BarChartProps): JSX.Element {
 		<ChartWrapper
 			{...rest}
 			config={config}
-			data={chartData}
+			data={data}
 			customTooltip={renderTooltip}
 			pinnedTooltipElement={pinnedTooltipElement}
 		>
--- a/frontend/src/container/DashboardContainer/visualization/charts/ChartWrapper/ChartWrapper.tsx
+++ b/frontend/src/container/DashboardContainer/visualization/charts/ChartWrapper/ChartWrapper.tsx
@@ -6,12 +6,15 @@ import {
 	TooltipRenderArgs,
 } from 'lib/uPlotV2/components/types';
 import UPlotChart from 'lib/uPlotV2/components/UPlotChart/UPlotChart';
+import { StackMode } from 'lib/uPlotV2/config/types';
+import { prepareAlignedData } from 'lib/uPlotV2/components/UPlotChart/utils';
 import { PlotContextProvider } from 'lib/uPlotV2/context/PlotContext';
 import TooltipPlugin from 'lib/uPlotV2/plugins/TooltipPlugin/TooltipPlugin';
 import noop from 'lodash-es/noop';
 import uPlot from 'uplot';

-import { ChartProps } from '../types';
+import { ChartWrapperProps } from '../types';
+import { useChartStacking } from './useChartStacking';

 const TOOLTIP_WIDTH_PADDING = 120;
 const TOOLTIP_MIN_WIDTH = 300;
@@ -39,9 +42,20 @@ export default function ChartWrapper({
 	pinnedTooltipElement,
 	tooltipPortalRoot,
 	'data-testid': testId,
-}: ChartProps): JSX.Element {
+}: ChartWrapperProps): JSX.Element {
 	const plotInstanceRef = useRef<uPlot | null>(null);

+	const stack = config.getStackMode();
+	const chartData = useChartStacking({ data, config });
+
+	// Tooltips need pre-stack values, gap-processed exactly as UPlotChart processes the
+	// plot data — otherwise the cursor's index addresses a shorter array.
+	const unstackedData = useMemo(
+		() =>
+			stack === StackMode.None ? undefined : prepareAlignedData({ data, config }),
+		[data, config, stack],
+	);
+
 	const legendComponent = useCallback(
 		(averageLegendWidth: number): React.ReactNode => {
 			if (!showLegend) {
@@ -61,11 +75,11 @@ export default function ChartWrapper({
 	const renderTooltipCallback = useCallback(
 		(args: TooltipRenderArgs): React.ReactNode => {
 			if (customTooltip) {
-				return customTooltip(args);
+				return customTooltip({ ...args, unstackedData });
 			}
 			return null;
 		},
-		[customTooltip],
+		[customTooltip, unstackedData],
 	);

 	const syncMetadata = useMemo(
@@ -91,7 +105,7 @@ export default function ChartWrapper({
 				{({ chartWidth, chartHeight, averageLegendWidth }): JSX.Element => (
 					<UPlotChart
 						config={config}
-						data={data}
+						data={chartData}
 						width={chartWidth}
 						height={chartHeight}
 						plotRef={(plot): void => {
--- a/frontend/src/container/DashboardContainer/visualization/charts/ChartWrapper/tests/useChartStacking.test.ts
+++ b/frontend/src/container/DashboardContainer/visualization/charts/ChartWrapper/tests/useChartStacking.test.ts
@@ -0,0 +1,98 @@
+import { renderHook } from '@testing-library/react';
+import { UPlotConfigBuilder } from 'lib/uPlotV2/config/UPlotConfigBuilder';
+import { StackMode } from 'lib/uPlotV2/config/types';
+import uPlot from 'uplot';
+
+import { useChartStacking } from '../useChartStacking';
+
+type Hooks = Record<string, (...args: unknown[]) => void>;
+
+function createConfig(stack: StackMode): {
+	config: UPlotConfigBuilder;
+	hooks: Hooks;
+} {
+	const hooks: Hooks = {};
+	const config = {
+		getStackMode: (): StackMode => stack,
+		addHook: jest.fn((type: string, hook: (...args: unknown[]) => void) => {
+			hooks[type] = hook;
+			return jest.fn();
+		}),
+	} as unknown as UPlotConfigBuilder;
+	return { config, hooks };
+}
+
+const data = [[1], [30], [10]] as unknown as uPlot.AlignedData;
+
+describe('useChartStacking', () => {
+	it('returns the data untouched and registers nothing when the config says `none`', () => {
+		const { config } = createConfig(StackMode.None);
+		const { result } = renderHook(() => useChartStacking({ data, config }));
+
+		expect(result.current).toBe(data);
+		expect(config.addHook).not.toHaveBeenCalled();
+	});
+
+	it('treats a missing config as unstacked', () => {
+		const { result } = renderHook(() => useChartStacking({ data, config: null }));
+
+		expect(result.current).toBe(data);
+	});
+
+	it('accumulates raw values when the config declares `normal`', () => {
+		const { config } = createConfig(StackMode.Normal);
+		const { result } = renderHook(() => useChartStacking({ data, config }));
+
+		expect(result.current).toStrictEqual([[1], [40], [10]]);
+	});
+
+	it('rescales each column to its total when the config declares `percent`', () => {
+		const { config } = createConfig(StackMode.Percent);
+		const { result } = renderHook(() => useChartStacking({ data, config }));
+
+		expect(result.current).toStrictEqual([[1], [100], [25]]);
+	});
+
+	it('registers the uPlot hooks that re-stack on data and visibility changes', () => {
+		const { config } = createConfig(StackMode.Normal);
+		renderHook(() => useChartStacking({ data, config }));
+
+		expect(
+			(config.addHook as jest.Mock).mock.calls.map(([type]) => type),
+		).toStrictEqual(['setData', 'setSeries']);
+	});
+
+	it('re-stacks from the raw values when the legend hides a series', () => {
+		const { config, hooks } = createConfig(StackMode.Normal);
+		renderHook(() => useChartStacking({ data, config }));
+
+		const plot = {
+			data: [[1]],
+			series: [{}, { show: true }, { show: false }],
+			delBand: jest.fn(),
+			addBand: jest.fn(),
+			setData: jest.fn(),
+		};
+		hooks.setSeries(plot, 2, { show: false });
+
+		// The hidden series keeps its raw value and stops contributing to the total.
+		expect(plot.setData).toHaveBeenCalledWith([[1], [30], [10]]);
+		expect(plot.delBand).toHaveBeenCalledWith(null);
+	});
+
+	it('ignores a focus-only setSeries so hovering does not re-stack', () => {
+		const { config, hooks } = createConfig(StackMode.Normal);
+		renderHook(() => useChartStacking({ data, config }));
+
+		const plot = {
+			data: [[1]],
+			series: [{}, { show: true }, { show: true }],
+			delBand: jest.fn(),
+			addBand: jest.fn(),
+			setData: jest.fn(),
+		};
+		hooks.setSeries(plot, 1, { focus: true });
+
+		expect(plot.setData).not.toHaveBeenCalled();
+	});
+});
--- a/frontend/src/container/DashboardContainer/visualization/charts/ChartWrapper/useChartStacking.ts
+++ b/frontend/src/container/DashboardContainer/visualization/charts/ChartWrapper/useChartStacking.ts
@@ -0,0 +1,132 @@
+import {
+	MutableRefObject,
+	useCallback,
+	useLayoutEffect,
+	useMemo,
+	useRef,
+} from 'react';
+import { UPlotConfigBuilder } from 'lib/uPlotV2/config/UPlotConfigBuilder';
+import { StackMode } from 'lib/uPlotV2/config/types';
+import { has } from 'lodash-es';
+import uPlot from 'uplot';
+
+import { stackSeries } from '../utils/stackSeriesUtils';
+
+/** Returns true if the series at the given index is hidden (e.g. via legend toggle). */
+function isSeriesHidden(plot: uPlot, seriesIndex: number): boolean {
+	return !plot.series[seriesIndex]?.show;
+}
+
+function canApplyStacking(
+	unstackedData: uPlot.AlignedData | null,
+	plot: uPlot,
+	isUpdating: boolean,
+): boolean {
+	return (
+		!isUpdating &&
+		!!unstackedData &&
+		!!plot.data &&
+		unstackedData[0]?.length === plot.data[0]?.length
+	);
+}
+
+function setupStackingHooks(
+	config: UPlotConfigBuilder,
+	updateStacksInChart: (plot: uPlot) => void,
+	isUpdatingRef: MutableRefObject<boolean>,
+): () => void {
+	const onDataChange = (plot: uPlot): void => {
+		if (!isUpdatingRef.current) {
+			updateStacksInChart(plot);
+		}
+	};
+
+	const onSeriesVisibilityChange = (
+		plot: uPlot,
+		_seriesIdx: number | null,
+		opts: uPlot.Series,
+	): void => {
+		// uPlot fires setSeries for hover focus too; only visibility changes restack.
+		if (!has(opts, 'focus')) {
+			updateStacksInChart(plot);
+		}
+	};
+
+	const removeSetDataHook = config.addHook('setData', onDataChange);
+	const removeSetSeriesHook = config.addHook(
+		'setSeries',
+		onSeriesVisibilityChange,
+	);
+
+	return (): void => {
+		removeSetDataHook?.();
+		removeSetSeriesHook?.();
+	};
+}
+
+export interface UseChartStackingParams {
+	data: uPlot.AlignedData;
+	config: UPlotConfigBuilder | null;
+}
+
+/**
+ * Stacks a chart's data for the mode declared on its config, and re-stacks on data or
+ * visibility changes. The pre-stack values live in a ref because the uPlot hooks that
+ * read them run outside React's render cycle.
+ */
+export function useChartStacking({
+	data,
+	config,
+}: UseChartStackingParams): uPlot.AlignedData {
+	const stack = config?.getStackMode() ?? StackMode.None;
+	const unstackedDataRef = useRef<uPlot.AlignedData | null>(null);
+	unstackedDataRef.current = stack === 'none' ? null : data;
+
+	// Guards the re-entrant setData below, which would otherwise re-trigger our own hook.
+	const isUpdatingChartRef = useRef(false);
+
+	const chartData = useMemo((): uPlot.AlignedData => {
+		if (stack === StackMode.None || !data || data.length < 2) {
+			return data;
+		}
+		const noSeriesHidden = (): boolean => false; // include all series in initial stack
+		return stackSeries(data, noSeriesHidden, stack).data;
+	}, [data, stack]);
+
+	const updateStacksInChart = useCallback(
+		(plot: uPlot): void => {
+			const unstacked = unstackedDataRef.current;
+			if (
+				!unstacked ||
+				!canApplyStacking(unstacked, plot, isUpdatingChartRef.current)
+			) {
+				return;
+			}
+
+			const shouldExcludeSeries = (idx: number): boolean =>
+				isSeriesHidden(plot, idx);
+			const { data: stacked, bands } = stackSeries(
+				unstacked,
+				shouldExcludeSeries,
+				stack,
+			);
+
+			plot.delBand(null);
+			bands.forEach((band: uPlot.Band) => plot.addBand(band));
+
+			isUpdatingChartRef.current = true;
+			plot.setData(stacked);
+			isUpdatingChartRef.current = false;
+		},
+		[stack],
+	);
+
+	useLayoutEffect(() => {
+		if (stack === StackMode.None || !config) {
+			return undefined;
+		}
+		return setupStackingHooks(config, updateStacksInChart, isUpdatingChartRef);
+	}, [stack, config, updateStacksInChart]);
+
+	return chartData;
+}
--- a/frontend/src/container/DashboardContainer/visualization/charts/TimeSeries/TimeSeries.tsx
+++ b/frontend/src/container/DashboardContainer/visualization/charts/TimeSeries/TimeSeries.tsx
@@ -6,10 +6,16 @@ import {
 	TooltipRenderArgs,
 } from 'lib/uPlotV2/components/types';

+import { StackMode } from 'lib/uPlotV2/config/types';
+
 import { TimeSeriesChartProps } from '../types';

 export default function TimeSeries(props: TimeSeriesChartProps): JSX.Element {
-	const { children, customTooltip, ...rest } = props;
+	const { children, customTooltip, stack = StackMode.None, ...rest } = props;
+
+	// Written during render so it lands before UPlotChart's effect reads the config,
+	// which derives the fill bands, percent axis unit and percent range from it.
+	rest.config.setStackMode(stack);

 	const renderTooltip = useCallback(
 		(props: TooltipRenderArgs): React.ReactNode => {
--- a/frontend/src/container/DashboardContainer/visualization/charts/types.ts
+++ b/frontend/src/container/DashboardContainer/visualization/charts/types.ts
@@ -14,6 +14,7 @@ import {
 	ChartClickData,
 } from 'lib/uPlotV2/plugins/TooltipPlugin/types';
 import { BaseAutocompleteData } from 'types/api/queryBuilder/queryAutocompleteResponse';
+import type { StackMode } from 'lib/uPlotV2/config/types';

 interface BaseChartProps {
 	width: number;
@@ -52,27 +53,26 @@ interface UPlotChartDataProps {
 	groupByPerQuery?: Record<string, BaseAutocompleteData[]>;
 }

-export interface TimeSeriesChartProps
-	extends BaseChartProps, UPlotBasedChartProps, UPlotChartDataProps {
+/** Everything the shared uPlot shell consumes; each chart's props narrow it. */
+export interface ChartWrapperProps
+	extends BaseChartProps, UPlotBasedChartProps, UPlotChartDataProps {}
+
+export interface TimeSeriesChartProps extends ChartWrapperProps {
 	timezone?: Timezone;
+	/** How series compose. Defaults to `none`, which draws them independently. */
+	stack?: StackMode;
 }

-export interface HistogramChartProps
-	extends BaseChartProps, UPlotBasedChartProps, UPlotChartDataProps {
+export interface BarChartProps extends ChartWrapperProps {
+	timezone?: Timezone;
+	/** How series compose. Defaults to `none`, which draws them independently. */
+	stack?: StackMode;
+}
+
+export interface HistogramChartProps extends ChartWrapperProps {
 	isQueriesMerged?: boolean;
 }

-export interface BarChartProps
-	extends BaseChartProps, UPlotBasedChartProps, UPlotChartDataProps {
-	isStackedBarChart?: boolean;
-	timezone?: Timezone;
-}
-
-export type ChartProps =
-	| TimeSeriesChartProps
-	| BarChartProps
-	| HistogramChartProps;
-
 /**
 * One resolved pie/donut slice: a display label, its (already parsed) positive
 * numeric value, and the colour used for the arc + legend swatch.
--- a/frontend/src/container/DashboardContainer/visualization/charts/utils/tests/stackSeriesUtils.test.ts
+++ b/frontend/src/container/DashboardContainer/visualization/charts/utils/tests/stackSeriesUtils.test.ts
@@ -0,0 +1,158 @@
+import { AlignedData } from 'uplot';
+
+import { StackMode } from 'lib/uPlotV2/config/types';
+
+import { stackSeries } from '../stackSeriesUtils';
+
+const includeAll = (): boolean => false;
+
+// Stacking is top-down: the first series carries the column total, the last its own
+// raw value. Every expectation below reads in that order.
+describe('stackSeries', () => {
+	it('is a no-op under `none`, returning the data and no bands', () => {
+		const data: AlignedData = [[1], [30], [10]];
+
+		const { data: result, bands } = stackSeries(data, includeAll, StackMode.None);
+
+		expect(result).toBe(data);
+		expect(bands).toStrictEqual([]);
+	});
+
+	describe('normal', () => {
+		it('accumulates raw values from the bottom series upward', () => {
+			const data: AlignedData = [
+				[1, 2],
+				[10, 20],
+				[1, 2],
+			];
+
+			expect(stackSeries(data, includeAll, StackMode.Normal).data).toStrictEqual([
+				[1, 2],
+				[11, 22],
+				[1, 2],
+			]);
+		});
+
+		it('treats nulls as 0 without breaking the running total', () => {
+			const data: AlignedData = [
+				[1, 2],
+				[10, null],
+				[1, 2],
+			];
+
+			expect(stackSeries(data, includeAll, StackMode.Normal).data).toStrictEqual([
+				[1, 2],
+				[11, 2],
+				[1, 2],
+			]);
+		});
+
+		it('emits one band per adjacent pair of participating series', () => {
+			const data: AlignedData = [[1], [10], [5], [1]];
+
+			expect(stackSeries(data, includeAll, StackMode.Normal).bands).toStrictEqual([
+				{ series: [1, 2] },
+				{ series: [2, 3] },
+			]);
+		});
+
+		it('copies omitted series through unstacked and skips their bands', () => {
+			const data: AlignedData = [[1], [10], [5], [1]];
+			const omitMiddle = (seriesIndex: number): boolean => seriesIndex === 2;
+
+			const { data: stacked, bands } = stackSeries(
+				data,
+				omitMiddle,
+				StackMode.Normal,
+			);
+
+			expect(stacked).toStrictEqual([[1], [11], [5], [1]]);
+			expect(bands).toStrictEqual([{ series: [1, 3] }]);
+		});
+	});
+
+	describe('percent', () => {
+		it('rescales each column to its total so the top series reads 100', () => {
+			const data: AlignedData = [
+				[1, 2],
+				[30, 10],
+				[10, 10],
+			];
+
+			expect(stackSeries(data, includeAll, StackMode.Percent).data).toStrictEqual([
+				[1, 2],
+				[100, 100],
+				[25, 50],
+			]);
+		});
+
+		it('normalises per column, so an identical series differs across x', () => {
+			const data: AlignedData = [
+				[1, 2],
+				[1, 3],
+				[1, 1],
+			];
+
+			expect(stackSeries(data, includeAll, StackMode.Percent).data).toStrictEqual([
+				[1, 2],
+				[100, 100],
+				[50, 25],
+			]);
+		});
+
+		it('excludes omitted series from the total, so the visible ones still reach 100', () => {
+			const data: AlignedData = [[1], [30], [10], [60]];
+			const omitLast = (seriesIndex: number): boolean => seriesIndex === 3;
+
+			expect(stackSeries(data, omitLast, StackMode.Percent).data).toStrictEqual([
+				[1],
+				[100],
+				[25],
+				[60],
+			]);
+		});
+
+		it('yields 0 for a column whose participating series sum to zero', () => {
+			const data: AlignedData = [
+				[1, 2],
+				[0, 5],
+				[0, 5],
+			];
+
+			expect(stackSeries(data, includeAll, StackMode.Percent).data).toStrictEqual([
+				[1, 2],
+				[0, 100],
+				[0, 50],
+			]);
+		});
+
+		it('divides by the signed total when a column mixes signs', () => {
+			// 30 + (-10) = 20, so the shares are 150% and -50% and still sum to 100.
+			const data: AlignedData = [[1], [30], [-10]];
+
+			expect(stackSeries(data, includeAll, StackMode.Percent).data).toStrictEqual([
+				[1],
+				[100],
+				[-50],
+			]);
+		});
+
+		it('yields 0 across a column whose signed total cancels to zero', () => {
+			const data: AlignedData = [[1], [10], [-10]];
+
+			expect(stackSeries(data, includeAll, StackMode.Percent).data).toStrictEqual([
+				[1],
+				[0],
+				[0],
+			]);
+		});
+	});
+
+	it('defaults to normal when no mode is given', () => {
+		const data: AlignedData = [[1], [30], [10]];
+
+		expect(stackSeries(data, includeAll).data).toStrictEqual(
+			stackSeries(data, includeAll, StackMode.Normal).data,
+		);
+	});
+});
--- a/frontend/src/container/DashboardContainer/visualization/charts/utils/tests/stackUtils.test.ts
+++ b/frontend/src/container/DashboardContainer/visualization/charts/utils/tests/stackUtils.test.ts
@@ -1,117 +0,0 @@
-import { AlignedData } from 'uplot';
-
-import { getInitialStackedBands, stack } from '../stackUtils';
-
-describe('stackUtils', () => {
-	describe('stack', () => {
-		const neverOmit = (): boolean => false;
-
-		it('preserves time axis as first row', () => {
-			const data: AlignedData = [
-				[100, 200, 300],
-				[1, 2, 3],
-				[4, 5, 6],
-			];
-			const { data: result } = stack(data, neverOmit);
-			expect(result[0]).toStrictEqual([100, 200, 300]);
-		});
-
-		it('stacks value series cumulatively (last = raw, first = total)', () => {
-			// Time, then 3 value series. Stack order: last series stays raw, then we add upward.
-			const data: AlignedData = [
-				[0, 1, 2],
-				[1, 2, 3], // series 1
-				[4, 5, 6], // series 2
-				[7, 8, 9], // series 3
-			];
-			const { data: result } = stack(data, neverOmit);
-			// result[1] = s1+s2+s3, result[2] = s2+s3, result[3] = s3
-			expect(result[1]).toStrictEqual([12, 15, 18]); // 1+4+7, 2+5+8, 3+6+9
-			expect(result[2]).toStrictEqual([11, 13, 15]); // 4+7, 5+8, 6+9
-			expect(result[3]).toStrictEqual([7, 8, 9]);
-		});
-
-		it('treats null values as 0 when stacking', () => {
-			const data: AlignedData = [
-				[0, 1],
-				[1, null],
-				[null, 10],
-			];
-			const { data: result } = stack(data, neverOmit);
-			expect(result[1]).toStrictEqual([1, 10]); // total
-			expect(result[2]).toStrictEqual([0, 10]); // last series with null→0
-		});
-
-		it('copies omitted series as-is without accumulating', () => {
-			// Omit series 2 (index 2); series 1 and 3 are stacked.
-			const data: AlignedData = [
-				[0, 1],
-				[10, 20], // series 1
-				[100, 200], // series 2 - omitted
-				[1, 2], // series 3
-			];
-			const omitSeries2 = (i: number): boolean => i === 2;
-			const { data: result } = stack(data, omitSeries2);
-			// series 3 raw: [1, 2]; series 2 omitted: [100, 200] as-is; series 1 stacked with s3: [11, 22]
-			expect(result[1]).toStrictEqual([11, 22]); // 10+1, 20+2
-			expect(result[2]).toStrictEqual([100, 200]); // copied, not stacked
-			expect(result[3]).toStrictEqual([1, 2]);
-		});
-
-		it('returns bands between consecutive visible series when none omitted', () => {
-			const data: AlignedData = [
-				[0, 1],
-				[1, 2],
-				[3, 4],
-				[5, 6],
-			];
-			const { bands } = stack(data, neverOmit);
-			expect(bands).toStrictEqual([{ series: [1, 2] }, { series: [2, 3] }]);
-		});
-
-		it('returns bands only between visible series when some are omitted', () => {
-			// 4 value series; omit index 2. Visible: 1, 3, 4. Bands: [1,3], [3,4]
-			const data: AlignedData = [[0], [1], [2], [3], [4]];
-			const omitSeries2 = (i: number): boolean => i === 2;
-			const { bands } = stack(data, omitSeries2);
-			expect(bands).toStrictEqual([{ series: [1, 3] }, { series: [3, 4] }]);
-		});
-
-		it('returns empty bands when only one value series', () => {
-			const data: AlignedData = [
-				[0, 1],
-				[1, 2],
-			];
-			const { bands } = stack(data, neverOmit);
-			expect(bands).toStrictEqual([]);
-		});
-	});
-
-	describe('getInitialStackedBands', () => {
-		it('returns one band between each consecutive pair for seriesCount 3', () => {
-			expect(getInitialStackedBands(3)).toStrictEqual([
-				{ series: [1, 2] },
-				{ series: [2, 3] },
-			]);
-		});
-
-		it('returns empty array for seriesCount 0 or 1', () => {
-			expect(getInitialStackedBands(0)).toStrictEqual([]);
-			expect(getInitialStackedBands(1)).toStrictEqual([]);
-		});
-
-		it('returns single band for seriesCount 2', () => {
-			expect(getInitialStackedBands(2)).toStrictEqual([{ series: [1, 2] }]);
-		});
-
-		it('returns bands [1,2], [2,3], ..., [n-1, n] for seriesCount n', () => {
-			const bands = getInitialStackedBands(5);
-			expect(bands).toStrictEqual([
-				{ series: [1, 2] },
-				{ series: [2, 3] },
-				{ series: [3, 4] },
-				{ series: [4, 5] },
-			]);
-		});
-	});
-});
--- a/frontend/src/container/DashboardContainer/visualization/charts/utils/stackSeriesUtils.ts
+++ b/frontend/src/container/DashboardContainer/visualization/charts/utils/stackSeriesUtils.ts
@@ -1,13 +1,20 @@
+import { StackMode } from 'lib/uPlotV2/config/types';
 import uPlot, { AlignedData } from 'uplot';

 /**
 * Stack data cumulatively (top-down: first series = top, last = bottom).
- * When `omit(seriesIndex)` returns true, that series is excluded from stacking.
+ * When `omit(seriesIndex)` returns true, that series keeps its raw values and
+ * contributes nothing to the total. `None` is a no-op.
 */
 export function stackSeries(
 	data: AlignedData,
 	omit: (seriesIndex: number) => boolean,
+	mode: StackMode = StackMode.Normal,
 ): { data: AlignedData; bands: uPlot.Band[] } {
+	if (mode === StackMode.None) {
+		return { data, bands: [] };
+	}
+
 	const timeAxis = data[0];
 	const pointCount = timeAxis.length;
 	const valueSeriesCount = data.length - 1; // exclude time axis
@@ -17,6 +24,7 @@ export function stackSeries(
 		valueSeriesCount,
 		pointCount,
 		omit,
+		mode,
 	});
 	const bands = buildFillBands(valueSeriesCount + 1, omit); // +1 for 1-based series indices

@@ -31,6 +39,46 @@ interface BuildStackedSeriesParams {
 	valueSeriesCount: number;
 	pointCount: number;
 	omit: (seriesIndex: number) => boolean;
+	mode: StackMode;
+}
+
+/** Per-point total. Mixed-sign columns sum signed, as "share of total" implies. */
+function columnTotals({
+	data,
+	valueSeriesCount,
+	pointCount,
+	omit,
+}: Omit<BuildStackedSeriesParams, 'mode'>): number[] {
+	const totals = Array(pointCount).fill(0) as number[];
+
+	for (let seriesIndex = 1; seriesIndex <= valueSeriesCount; seriesIndex++) {
+		if (omit(seriesIndex)) {
+			continue;
+		}
+		const rawValues = data[seriesIndex] as (number | null)[];
+		rawValues.forEach((rawValue, pointIndex) => {
+			totals[pointIndex] += rawValue == null ? 0 : Number(rawValue);
+		});
+	}
+
+	return totals;
+}
+
+/** A column whose participating series sum to 0 has no share to divide, so every slice is 0. */
+function toPercent(value: number, total: number): number {
+	return total === 0 ? 0 : (value / total) * 100;
+}
+
+/** What a raw value adds to the stack at a given point. */
+type Contribution = (value: number, pointIndex: number) => number;
+
+function contributionForMode(params: BuildStackedSeriesParams): Contribution {
+	if (params.mode !== StackMode.Percent) {
+		return (value): number => value;
+	}
+	// Resolved up front: totals span series the accumulation below has not reached yet.
+	const totals = columnTotals(params);
+	return (value, pointIndex): number => toPercent(value, totals[pointIndex]);
 }

 /**
@@ -42,9 +90,17 @@ function buildStackedSeries({
 	valueSeriesCount,
 	pointCount,
 	omit,
+	mode,
 }: BuildStackedSeriesParams): (number | null)[][] {
 	const stackedSeries: (number | null)[][] = Array(valueSeriesCount);
 	const cumulativeSums = Array(pointCount).fill(0) as number[];
+	const contributionOf = contributionForMode({
+		data,
+		valueSeriesCount,
+		pointCount,
+		omit,
+		mode,
+	});

 	for (let seriesIndex = valueSeriesCount; seriesIndex >= 1; seriesIndex--) {
 		const rawValues = data[seriesIndex] as (number | null)[];
@@ -54,7 +110,10 @@ function buildStackedSeries({
 		} else {
 			stackedSeries[seriesIndex - 1] = rawValues.map((rawValue, pointIndex) => {
 				const numericValue = rawValue == null ? 0 : Number(rawValue);
-				return (cumulativeSums[pointIndex] += numericValue);
+				return (cumulativeSums[pointIndex] += contributionOf(
+					numericValue,
+					pointIndex,
+				));
 			});
 		}
 	}
@@ -101,16 +160,3 @@ function findNextVisibleSeriesIndex(
 	}
 	return -1;
 }
-
-/**
- * Returns band indices for initial stacked state (no series omitted).
- * Top-down: first series at top, band fills between consecutive series.
- * uPlot band format: [upperSeriesIdx, lowerSeriesIdx].
- */
-export function getInitialStackedBands(seriesCount: number): uPlot.Band[] {
-	const bands: uPlot.Band[] = [];
-	for (let seriesIndex = 1; seriesIndex < seriesCount; seriesIndex++) {
-		bands.push({ series: [seriesIndex, seriesIndex + 1] });
-	}
-	return bands;
-}
--- a/frontend/src/container/DashboardContainer/visualization/charts/utils/stackUtils.ts
+++ b/frontend/src/container/DashboardContainer/visualization/charts/utils/stackUtils.ts
@@ -1,116 +0,0 @@
-import uPlot, { AlignedData } from 'uplot';
-
-/**
- * Stack data cumulatively (top-down: first series = top, last = bottom).
- * When `omit(seriesIndex)` returns true, that series is excluded from stacking.
- */
-export function stack(
-	data: AlignedData,
-	omit: (seriesIndex: number) => boolean,
-): { data: AlignedData; bands: uPlot.Band[] } {
-	const timeAxis = data[0];
-	const pointCount = timeAxis.length;
-	const valueSeriesCount = data.length - 1; // exclude time axis
-
-	const stackedSeries = buildStackedSeries({
-		data,
-		valueSeriesCount,
-		pointCount,
-		omit,
-	});
-	const bands = buildFillBands(valueSeriesCount + 1, omit); // +1 for 1-based series indices
-
-	return {
-		data: [timeAxis, ...stackedSeries] as AlignedData,
-		bands,
-	};
-}
-
-interface BuildStackedSeriesParams {
-	data: AlignedData;
-	valueSeriesCount: number;
-	pointCount: number;
-	omit: (seriesIndex: number) => boolean;
-}
-
-/**
- * Accumulate from last series upward: last series = raw values, first = total.
- * Omitted series are copied as-is (no accumulation).
- */
-function buildStackedSeries({
-	data,
-	valueSeriesCount,
-	pointCount,
-	omit,
-}: BuildStackedSeriesParams): (number | null)[][] {
-	const stackedSeries: (number | null)[][] = Array(valueSeriesCount);
-	const cumulativeSums = Array(pointCount).fill(0) as number[];
-
-	for (let seriesIndex = valueSeriesCount; seriesIndex >= 1; seriesIndex--) {
-		const rawValues = data[seriesIndex] as (number | null)[];
-
-		if (omit(seriesIndex)) {
-			stackedSeries[seriesIndex - 1] = rawValues;
-		} else {
-			stackedSeries[seriesIndex - 1] = rawValues.map((rawValue, pointIndex) => {
-				const numericValue = rawValue == null ? 0 : Number(rawValue);
-				return (cumulativeSums[pointIndex] += numericValue);
-			});
-		}
-	}
-
-	return stackedSeries;
-}
-
-/**
- * Bands define fill between consecutive visible series for stacked appearance.
- * uPlot format: [upperSeriesIdx, lowerSeriesIdx].
- */
-function buildFillBands(
-	seriesLength: number,
-	omit: (seriesIndex: number) => boolean,
-): uPlot.Band[] {
-	const bands: uPlot.Band[] = [];
-
-	for (let seriesIndex = 1; seriesIndex < seriesLength; seriesIndex++) {
-		if (omit(seriesIndex)) {
-			continue;
-		}
-		const nextVisibleSeriesIndex = findNextVisibleSeriesIndex(
-			seriesLength,
-			seriesIndex,
-			omit,
-		);
-		if (nextVisibleSeriesIndex !== -1) {
-			bands.push({ series: [seriesIndex, nextVisibleSeriesIndex] });
-		}
-	}
-
-	return bands;
-}
-
-function findNextVisibleSeriesIndex(
-	seriesLength: number,
-	afterIndex: number,
-	omit: (seriesIndex: number) => boolean,
-): number {
-	for (let i = afterIndex + 1; i < seriesLength; i++) {
-		if (!omit(i)) {
-			return i;
-		}
-	}
-	return -1;
-}
-
-/**
- * Returns band indices for initial stacked state (no series omitted).
- * Top-down: first series at top, band fills between consecutive series.
- * uPlot band format: [upperSeriesIdx, lowerSeriesIdx].
- */
-export function getInitialStackedBands(seriesCount: number): uPlot.Band[] {
-	const bands: uPlot.Band[] = [];
-	for (let seriesIndex = 1; seriesIndex < seriesCount; seriesIndex++) {
-		bands.push({ series: [seriesIndex, seriesIndex + 1] });
-	}
-	return bands;
-}
--- a/frontend/src/container/DashboardContainer/visualization/hooks/tests/useBarChartStacking.test.ts
+++ b/frontend/src/container/DashboardContainer/visualization/hooks/tests/useBarChartStacking.test.ts
@@ -1,313 +0,0 @@
-import { renderHook } from '@testing-library/react';
-import uPlot from 'uplot';
-
-import type { UseBarChartStackingParams } from '../useBarChartStacking';
-import { useBarChartStacking } from '../useBarChartStacking';
-
-type MockConfig = { addHook: jest.Mock };
-
-function asConfig(c: MockConfig): UseBarChartStackingParams['config'] {
-	return c as unknown as UseBarChartStackingParams['config'];
-}
-
-function createMockConfig(): {
-	config: MockConfig;
-	invokeSetData: (plot: uPlot) => void;
-	invokeSetSeries: (
-		plot: uPlot,
-		seriesIndex: number | null,
-		opts: Partial<uPlot.Series> & { focus?: boolean },
-	) => void;
-	removeSetData: jest.Mock;
-	removeSetSeries: jest.Mock;
-} {
-	let setDataHandler: ((plot: uPlot) => void) | null = null;
-	let setSeriesHandler:
-		| ((plot: uPlot, seriesIndex: number | null, opts: uPlot.Series) => void)
-		| null = null;
-
-	const removeSetData = jest.fn();
-	const removeSetSeries = jest.fn();
-
-	const addHook = jest.fn(
-		(
-			hookName: string,
-			handler: (plot: uPlot, ...args: unknown[]) => void,
-		): (() => void) => {
-			if (hookName === 'setData') {
-				setDataHandler = handler as (plot: uPlot) => void;
-				return removeSetData;
-			}
-			if (hookName === 'setSeries') {
-				setSeriesHandler = handler as (
-					plot: uPlot,
-					seriesIndex: number | null,
-					opts: uPlot.Series,
-				) => void;
-				return removeSetSeries;
-			}
-			return jest.fn();
-		},
-	);
-
-	const config: MockConfig = { addHook };
-
-	const invokeSetData = (plot: uPlot): void => {
-		setDataHandler?.(plot);
-	};
-
-	const invokeSetSeries = (
-		plot: uPlot,
-		seriesIndex: number | null,
-		opts: Partial<uPlot.Series> & { focus?: boolean },
-	): void => {
-		setSeriesHandler?.(plot, seriesIndex, opts as uPlot.Series);
-	};
-
-	return {
-		config,
-		invokeSetData,
-		invokeSetSeries,
-		removeSetData,
-		removeSetSeries,
-	};
-}
-
-function createMockPlot(overrides: Partial<uPlot> = {}): uPlot {
-	return {
-		data: [
-			[0, 1, 2],
-			[1, 2, 3],
-			[4, 5, 6],
-		],
-		series: [{ show: true }, { show: true }, { show: true }],
-		delBand: jest.fn(),
-		addBand: jest.fn(),
-		setData: jest.fn(),
-		...overrides,
-	} as unknown as uPlot;
-}
-
-describe('useBarChartStacking', () => {
-	it('returns data as-is when isStackedBarChart is false', () => {
-		const data: uPlot.AlignedData = [
-			[100, 200],
-			[1, 2],
-			[3, 4],
-		];
-		const { result } = renderHook(() =>
-			useBarChartStacking({
-				data,
-				isStackedBarChart: false,
-				config: null,
-			}),
-		);
-		expect(result.current).toBe(data);
-	});
-
-	it('returns data as-is when config is null and isStackedBarChart is true', () => {
-		const data: uPlot.AlignedData = [
-			[0, 1],
-			[1, 2],
-			[4, 5],
-		];
-		const { result } = renderHook(() =>
-			useBarChartStacking({
-				data,
-				isStackedBarChart: true,
-				config: null,
-			}),
-		);
-		// Still returns stacked data (computed in useMemo); no hooks registered
-		expect(result.current[0]).toStrictEqual([0, 1]);
-		expect(result.current[1]).toStrictEqual([5, 7]); // stacked
-		expect(result.current[2]).toStrictEqual([4, 5]);
-	});
-
-	it('returns stacked data when isStackedBarChart is true and multiple value series', () => {
-		const data: uPlot.AlignedData = [
-			[0, 1, 2],
-			[1, 2, 3],
-			[4, 5, 6],
-			[7, 8, 9],
-		];
-		const { result } = renderHook(() =>
-			useBarChartStacking({
-				data,
-				isStackedBarChart: true,
-				config: null,
-			}),
-		);
-		expect(result.current[0]).toStrictEqual([0, 1, 2]);
-		expect(result.current[1]).toStrictEqual([12, 15, 18]); // s1+s2+s3
-		expect(result.current[2]).toStrictEqual([11, 13, 15]); // s2+s3
-		expect(result.current[3]).toStrictEqual([7, 8, 9]);
-	});
-
-	it('returns data as-is when only one value series (no stacking needed)', () => {
-		const data: uPlot.AlignedData = [
-			[0, 1],
-			[1, 2],
-		];
-		const { result } = renderHook(() =>
-			useBarChartStacking({
-				data,
-				isStackedBarChart: true,
-				config: null,
-			}),
-		);
-		expect(result.current).toStrictEqual(data);
-	});
-
-	it('registers setData and setSeries hooks when isStackedBarChart and config provided', () => {
-		const { config } = createMockConfig();
-		const data: uPlot.AlignedData = [
-			[0, 1],
-			[1, 2],
-			[3, 4],
-		];
-
-		renderHook(() =>
-			useBarChartStacking({
-				data,
-				isStackedBarChart: true,
-				config: asConfig(config),
-			}),
-		);
-
-		expect(config.addHook).toHaveBeenCalledWith('setData', expect.any(Function));
-		expect(config.addHook).toHaveBeenCalledWith(
-			'setSeries',
-			expect.any(Function),
-		);
-	});
-
-	it('does not register hooks when isStackedBarChart is false', () => {
-		const { config } = createMockConfig();
-		const data: uPlot.AlignedData = [
-			[0, 1],
-			[1, 2],
-			[3, 4],
-		];
-
-		renderHook(() =>
-			useBarChartStacking({
-				data,
-				isStackedBarChart: false,
-				config: asConfig(config),
-			}),
-		);
-
-		expect(config.addHook).not.toHaveBeenCalled();
-	});
-
-	it('calls cleanup when unmounted', () => {
-		const { config, removeSetData, removeSetSeries } = createMockConfig();
-		const data: uPlot.AlignedData = [
-			[0, 1],
-			[1, 2],
-			[3, 4],
-		];
-
-		const { unmount } = renderHook(() =>
-			useBarChartStacking({
-				data,
-				isStackedBarChart: true,
-				config: asConfig(config),
-			}),
-		);
-
-		unmount();
-
-		expect(removeSetData).toHaveBeenCalled();
-		expect(removeSetSeries).toHaveBeenCalled();
-	});
-
-	it('re-stacks and updates plot when setData hook is invoked', () => {
-		const { config, invokeSetData } = createMockConfig();
-		const data: uPlot.AlignedData = [
-			[0, 1, 2],
-			[1, 2, 3],
-			[4, 5, 6],
-		];
-		const plot = createMockPlot({
-			data: [
-				[0, 1, 2],
-				[5, 7, 9],
-				[4, 5, 6],
-			],
-		});
-
-		renderHook(() =>
-			useBarChartStacking({
-				data,
-				isStackedBarChart: true,
-				config: asConfig(config),
-			}),
-		);
-
-		invokeSetData(plot);
-
-		expect(plot.delBand).toHaveBeenCalledWith(null);
-		expect(plot.addBand).toHaveBeenCalled();
-		expect(plot.setData).toHaveBeenCalledWith(
-			expect.arrayContaining([
-				[0, 1, 2],
-				expect.any(Array), // stacked row 1
-				expect.any(Array), // stacked row 2
-			]),
-		);
-	});
-
-	it('re-stacks when setSeries hook is invoked (e.g. legend toggle)', () => {
-		const { config, invokeSetSeries } = createMockConfig();
-		const data: uPlot.AlignedData = [
-			[0, 1],
-			[10, 20],
-			[5, 10],
-		];
-		// Plot data must match unstacked length so canApplyStacking passes
-		const plot = createMockPlot({
-			data: [
-				[0, 1],
-				[15, 30],
-				[5, 10],
-			],
-		});
-
-		renderHook(() =>
-			useBarChartStacking({
-				data,
-				isStackedBarChart: true,
-				config: asConfig(config),
-			}),
-		);
-
-		invokeSetSeries(plot, 1, { show: false });
-
-		expect(plot.setData).toHaveBeenCalled();
-	});
-
-	it('does not re-stack when setSeries is called with focus option', () => {
-		const { config, invokeSetSeries } = createMockConfig();
-		const data: uPlot.AlignedData = [
-			[0, 1],
-			[1, 2],
-			[3, 4],
-		];
-		const plot = createMockPlot();
-
-		renderHook(() =>
-			useBarChartStacking({
-				data,
-				isStackedBarChart: true,
-				config: asConfig(config),
-			}),
-		);
-
-		(plot.setData as jest.Mock).mockClear();
-		invokeSetSeries(plot, 1, { focus: true } as uPlot.Series);
-
-		expect(plot.setData).not.toHaveBeenCalled();
-	});
-});
--- a/frontend/src/container/DashboardContainer/visualization/hooks/useBarChartStacking.ts
+++ b/frontend/src/container/DashboardContainer/visualization/hooks/useBarChartStacking.ts
@@ -1,125 +0,0 @@
-import {
-	MutableRefObject,
-	useCallback,
-	useLayoutEffect,
-	useMemo,
-	useRef,
-} from 'react';
-import { UPlotConfigBuilder } from 'lib/uPlotV2/config/UPlotConfigBuilder';
-import { has } from 'lodash-es';
-import uPlot from 'uplot';
-
-import { stackSeries } from '../charts/utils/stackSeriesUtils';
-
-/** Returns true if the series at the given index is hidden (e.g. via legend toggle). */
-function isSeriesHidden(plot: uPlot, seriesIndex: number): boolean {
-	return !plot.series[seriesIndex]?.show;
-}
-
-function canApplyStacking(
-	unstackedData: uPlot.AlignedData | null,
-	plot: uPlot,
-	isUpdating: boolean,
-): boolean {
-	return (
-		!isUpdating &&
-		!!unstackedData &&
-		!!plot.data &&
-		unstackedData[0]?.length === plot.data[0]?.length
-	);
-}
-
-function setupStackingHooks(
-	config: UPlotConfigBuilder,
-	applyStackingToChart: (plot: uPlot) => void,
-	isUpdatingRef: MutableRefObject<boolean>,
-): () => void {
-	const onDataChange = (plot: uPlot): void => {
-		if (!isUpdatingRef.current) {
-			applyStackingToChart(plot);
-		}
-	};
-
-	const onSeriesVisibilityChange = (
-		plot: uPlot,
-		_seriesIdx: number | null,
-		opts: uPlot.Series,
-	): void => {
-		if (!has(opts, 'focus')) {
-			applyStackingToChart(plot);
-		}
-	};
-
-	const removeSetDataHook = config.addHook('setData', onDataChange);
-	const removeSetSeriesHook = config.addHook(
-		'setSeries',
-		onSeriesVisibilityChange,
-	);
-
-	return (): void => {
-		removeSetDataHook?.();
-		removeSetSeriesHook?.();
-	};
-}
-
-export interface UseBarChartStackingParams {
-	data: uPlot.AlignedData;
-	isStackedBarChart?: boolean;
-	config: UPlotConfigBuilder | null;
-}
-
-/**
- * Handles stacking for bar charts: computes initial stacked data and re-stacks
- * when data or series visibility changes (e.g. legend toggles).
- */
-export function useBarChartStacking({
-	data,
-	isStackedBarChart = false,
-	config,
-}: UseBarChartStackingParams): uPlot.AlignedData {
-	// Store unstacked source data so uPlot hooks can access it (hooks run outside React's render cycle)
-	const unstackedDataRef = useRef<uPlot.AlignedData | null>(null);
-	unstackedDataRef.current = isStackedBarChart ? data : null;
-
-	// Prevents re-entrant calls when we update chart data (avoids infinite loop in setData hook)
-	const isUpdatingChartRef = useRef(false);
-
-	const chartData = useMemo((): uPlot.AlignedData => {
-		if (!isStackedBarChart || !data || data.length < 2) {
-			return data;
-		}
-		const noSeriesHidden = (): boolean => false; // include all series in initial stack
-		const { data: stacked } = stackSeries(data, noSeriesHidden);
-		return stacked;
-	}, [data, isStackedBarChart]);
-
-	const applyStackingToChart = useCallback((plot: uPlot): void => {
-		const unstacked = unstackedDataRef.current;
-		if (
-			!unstacked ||
-			!canApplyStacking(unstacked, plot, isUpdatingChartRef.current)
-		) {
-			return;
-		}
-
-		const shouldExcludeSeries = (idx: number): boolean =>
-			isSeriesHidden(plot, idx);
-		const { data: stacked, bands } = stackSeries(unstacked, shouldExcludeSeries);
-
-		plot.delBand(null);
-		bands.forEach((band: uPlot.Band) => plot.addBand(band));
-
-		isUpdatingChartRef.current = true;
-		plot.setData(stacked);
-		isUpdatingChartRef.current = false;
-	}, []);
-
-	useLayoutEffect(() => {
-		if (!isStackedBarChart || !config) {
-			return undefined;
-		}
-		return setupStackingHooks(config, applyStackingToChart, isUpdatingChartRef);
-	}, [isStackedBarChart, config, applyStackingToChart]);
-
-	return chartData;
-}
--- a/frontend/src/container/DashboardContainer/visualization/panels/BarPanel/BarPanel.tsx
+++ b/frontend/src/container/DashboardContainer/visualization/panels/BarPanel/BarPanel.tsx
@@ -22,6 +22,7 @@ import { prepareBarPanelConfig } from './utils';
 import '../Panel.styles.scss';
 import TooltipFooter from '../components/TooltipFooter';
 import { prepareChartData } from 'lib/uPlotV2/utils/dataUtils';
+import { StackMode } from 'lib/uPlotV2/config/types';

 function BarPanel(props: PanelWrapperProps): JSX.Element {
 	const {
@@ -147,6 +148,7 @@ function BarPanel(props: PanelWrapperProps): JSX.Element {
 			{containerDimensions.width > 0 && containerDimensions.height > 0 && (
 				<BarChart
 					key={`${syncMode}-${syncFilterMode}`}
+					stack={widget.stackedBarChart ? StackMode.Normal : StackMode.None}
 					config={config}
 					legendConfig={{
 						position: widget?.legendPosition ?? LegendPosition.BOTTOM,
@@ -159,7 +161,6 @@ function BarPanel(props: PanelWrapperProps): JSX.Element {
 					height={containerDimensions.height}
 					layoutChildren={layoutChildren}
 					groupByPerQuery={groupByPerQuery}
-					isStackedBarChart={widget.stackedBarChart ?? false}
 					yAxisUnit={widget.yAxisUnit}
 					decimalPrecision={widget.decimalPrecision}
 					timezone={timezone}
--- a/frontend/src/container/DashboardContainer/visualization/panels/BarPanel/tests/utils.test.ts
+++ b/frontend/src/container/DashboardContainer/visualization/panels/BarPanel/tests/utils.test.ts
@@ -35,20 +35,10 @@ jest.mock('lib/getLabelName', () => ({
 	),
 }));

-jest.mock(
-	'container/DashboardContainer/visualization/charts/utils/stackSeriesUtils',
-	() => ({
-		getInitialStackedBands: jest.fn().mockReturnValue([]),
-	}),
-);
-
 const getLegendMock = jest.requireMock('lib/dashboard/getQueryResults')
 	.getLegend as jest.Mock;
 const getLabelNameMock = jest.requireMock('lib/getLabelName')
 	.default as jest.Mock;
-const getInitialStackedBandsMock = jest.requireMock(
-	'container/DashboardContainer/visualization/charts/utils/stackSeriesUtils',
-).getInitialStackedBands as jest.Mock;

 const createApiResponse = (
 	result: MetricRangePayloadProps['data']['result'] = [],
@@ -247,36 +237,5 @@ describe('BarPanel utils', () => {
 			}).getConfig();
 			expect(config.series?.[1]).toMatchObject({ stroke: '#ff0000' });
 		});
-
-		it('calls getInitialStackedBands when widget is stackedBarChart', () => {
-			const widget = createWidget({ stackedBarChart: true });
-			const apiResponse = createApiResponse([
-				{
-					metric: {},
-					queryName: 'Q1',
-					values: [[1000, '1']],
-				} as MetricRangePayloadProps['data']['result'][0],
-				{
-					metric: {},
-					queryName: 'Q2',
-					values: [[1000, '2']],
-				} as MetricRangePayloadProps['data']['result'][0],
-			]);
-			prepareBarPanelConfig({ ...baseParams, widget, apiResponse });
-			// seriesCount = result.length + 1 = 3
-			expect(getInitialStackedBandsMock).toHaveBeenCalledWith(3);
-		});
-
-		it('does not call getInitialStackedBands for non-stacked chart', () => {
-			const apiResponse = createApiResponse([
-				{
-					metric: {},
-					queryName: 'Q1',
-					values: [[1000, '1']],
-				} as MetricRangePayloadProps['data']['result'][0],
-			]);
-			prepareBarPanelConfig({ ...baseParams, apiResponse });
-			expect(getInitialStackedBandsMock).not.toHaveBeenCalled();
-		});
 	});
 });
--- a/frontend/src/container/DashboardContainer/visualization/panels/BarPanel/utils.ts
+++ b/frontend/src/container/DashboardContainer/visualization/panels/BarPanel/utils.ts
@@ -1,7 +1,6 @@
 import { ExecStats } from 'api/v5/v5';
 import { Timezone } from 'components/CustomTimePicker/timezoneUtils';
 import { PANEL_TYPES } from 'constants/queryBuilder';
-import { getInitialStackedBands } from 'container/DashboardContainer/visualization/charts/utils/stackSeriesUtils';
 import { getLegend } from 'lib/dashboard/getQueryResults';
 import getLabelName from 'lib/getLabelName';
 import { OnClickPluginOpts } from 'lib/uPlotLib/plugins/onClickPlugin';
@@ -69,11 +68,6 @@ export function prepareBarPanelConfig({
 		return builder;
 	}

-	if (widget.stackedBarChart) {
-		const seriesCount = (apiResponse.data.result.length ?? 0) + 1; // +1 for 1-based uPlot series indices
-		builder.setBands(getInitialStackedBands(seriesCount));
-	}
-
 	apiResponse.data.result.forEach((series) => {
 		const baseLabelName = getLabelName(
 			series.metric,
--- a/frontend/src/container/ExplorerOrderBy/index.tsx
+++ b/frontend/src/container/ExplorerOrderBy/index.tsx
@@ -2,7 +2,7 @@ import { memo, useMemo } from 'react';
 import { Select, Spin } from 'antd';
 import { OrderByFilterProps } from 'container/QueryBuilder/filters/OrderByFilter/OrderByFilter.interfaces';
 import { useOrderByFilter } from 'container/QueryBuilder/filters/OrderByFilter/useOrderByFilter';
-import { selectStyle } from 'container/QueryBuilder/filters/QueryBuilderSearch/config';
+import { selectStyle } from 'container/QueryBuilder/filters/QueryBuilderSearchV2/config';
 import { useGetAggregateKeys } from 'hooks/queryBuilder/useGetAggregateKeys';
 import { DataTypes } from 'types/api/queryBuilder/queryAutocompleteResponse';
 import { StringOperators } from 'types/common/queryBuilder';
--- a/frontend/src/container/FormAlertRules/BasicInfo.tsx
+++ b/frontend/src/container/FormAlertRules/BasicInfo.tsx
@@ -119,6 +119,7 @@ function BasicInfo({
 					<SeveritySelect
 						getPopupContainer={popupContainer}
 						defaultValue="critical"
+						data-testid="alert-severity-select"
 						onChange={(value: unknown | string): void => {
 							const s = (value as string) || 'critical';
 							setAlertDef({
@@ -147,6 +148,7 @@ function BasicInfo({
 					]}
 				>
 					<InputSmall
+						data-testid="alert-name-input-v1"
 						onChange={(e): void => {
 							setAlertDef({
 								...alertDef,
@@ -161,6 +163,7 @@ function BasicInfo({
 					name={['annotations', 'description']}
 				>
 					<TextareaMedium
+						data-testid="alert-description-input"
 						onChange={(e): void => {
 							setAlertDef({
 								...alertDef,
--- a/frontend/src/container/FormAlertRules/QuerySection.tsx
+++ b/frontend/src/container/FormAlertRules/QuerySection.tsx
@@ -105,7 +105,7 @@ function QuerySection({
 		{
 			label: (
 				<Tooltip title="Query Builder">
-					<Button className="nav-btns">
+					<Button className="nav-btns" data-testid="query-builder-tab">
 						<Atom size={14} />
 						<Typography.Text>Query Builder</Typography.Text>
 					</Button>
@@ -122,7 +122,11 @@ function QuerySection({
 							: 'ClickHouse'
 					}
 				>
-					<Button className="nav-btns" disabled={isAnomalyDetection}>
+					<Button
+						className="nav-btns"
+						disabled={isAnomalyDetection}
+						data-testid="clickhouse-tab"
+					>
 						<Terminal size={14} />
 						<Typography.Text>ClickHouse Query</Typography.Text>
 					</Button>
@@ -162,7 +166,11 @@ function QuerySection({
 								: 'ClickHouse'
 						}
 					>
-						<Button className="nav-btns" disabled={isAnomalyDetection}>
+						<Button
+							className="nav-btns"
+							disabled={isAnomalyDetection}
+							data-testid="clickhouse-tab"
+						>
 							<Terminal size={14} />
 							<Typography.Text>ClickHouse Query</Typography.Text>
 						</Button>
@@ -180,7 +188,11 @@ function QuerySection({
 								: 'PromQL'
 						}
 					>
-						<Button className="nav-btns" disabled={isAnomalyDetection}>
+						<Button
+							className="nav-btns"
+							disabled={isAnomalyDetection}
+							data-testid="promql-tab"
+						>
 							<PromQLIcon
 								fillColor={isDarkMode ? Color.BG_VANILLA_200 : Color.BG_INK_300}
 							/>
--- a/frontend/src/container/FormAlertRules/RuleOptions.tsx
+++ b/frontend/src/container/FormAlertRules/RuleOptions.tsx
@@ -80,6 +80,7 @@ function RuleOptions({
 			defaultValue={defaultCompareOp}
 			value={alertDef.condition?.op}
 			style={{ minWidth: '120px' }}
+			data-testid="alert-threshold-op-select"
 			onChange={(value: string | unknown): void => {
 				const newOp = (value as string) || '';

@@ -116,6 +117,7 @@ function RuleOptions({
 			defaultValue={defaultMatchType}
 			style={{ minWidth: '130px' }}
 			value={alertDef.condition?.matchType}
+			data-testid="alert-threshold-match-type-select-v1"
 			onChange={(value: string | unknown): void => handleMatchOptChange(value)}
 		>
 			<Select.Option value="1">{t('option_atleastonce')}</Select.Option>
@@ -177,6 +179,7 @@ function RuleOptions({
 			style={{ minWidth: '120px' }}
 			value={alertDef.evalWindow}
 			onChange={onChangeEvalWindow}
+			data-testid="alert-eval-window-select"
 		>
 			<Select.Option value="5m0s">{t('option_5min')}</Select.Option>
 			<Select.Option value="10m0s">{t('option_10min')}</Select.Option>
@@ -194,6 +197,7 @@ function RuleOptions({
 			style={{ minWidth: '120px' }}
 			value={alertDef.evalWindow}
 			onChange={onChangeEvalWindow}
+			data-testid="alert-eval-window-select"
 		>
 			<Select.Option value="5m0s">{t('option_5min')}</Select.Option>
 			<Select.Option value="10m0s">{t('option_10min')}</Select.Option>
@@ -395,6 +399,7 @@ function RuleOptions({
 									value={alertDef?.condition?.target}
 									onChange={onChange}
 									type="number"
+									data-testid="alert-threshold-target-input"
 									onWheel={(e): void => e.currentTarget.blur()}
 								/>
 							</Form.Item>
--- a/frontend/src/container/FormAlertRules/index.tsx
+++ b/frontend/src/container/FormAlertRules/index.tsx
@@ -844,8 +844,6 @@ function FormAlertRules({

 	return (
 		<>
-			{Element}
-
 			<div
 				id="top"
 				className={`form-alert-rules-container ${
@@ -968,6 +966,7 @@ function FormAlertRules({
 								!isChannelConfigurationValid ||
 								queryStatus === 'error'
 							}
+							data-testid="alert-save-button"
 						>
 							{isNewRule ? t('button_createrule') : t('button_savechanges')}
 						</ActionButton>
@@ -981,6 +980,7 @@ function FormAlertRules({
 							}
 							type="default"
 							onClick={onTestRuleHandler}
+							data-testid="alert-test-button"
 						>
 							{' '}
 							{t('button_testrule')}
@@ -989,6 +989,7 @@ function FormAlertRules({
 							disabled={loading || false}
 							type="default"
 							onClick={onCancelHandler}
+							data-testid="alert-cancel-button"
 						>
 							{isNewRule && t('button_cancelchanges')}
 							{ruleId && !isEmpty(ruleId) && t('button_discard')}
@@ -998,6 +999,7 @@ function FormAlertRules({
 			</div>

 			<ConfirmDialog
+				testId="alert-save-confirm-dialog"
 				open={isConfirmSaveOpen}
 				onOpenChange={setIsConfirmSaveOpen}
 				title={t('confirm_save_title')}
--- a/frontend/src/container/FormAlertRules/labels/index.tsx
+++ b/frontend/src/container/FormAlertRules/labels/index.tsx
@@ -174,6 +174,7 @@ function LabelSelect({

 			<div style={{ display: 'flex', width: '100%' }}>
 				<Input
+					data-testid="alert-labels-input-v1"
 					placeholder={renderPlaceholder()}
 					onChange={handleLabelChange}
 					onKeyUp={(e): void => {
--- a/frontend/src/container/LLMObservability/AttributeMapping/LLMObservabilityAttributeMapping.module.scss
+++ b/frontend/src/container/LLMObservability/AttributeMapping/LLMObservabilityAttributeMapping.module.scss
@@ -4,9 +4,9 @@
 	gap: var(--spacing-4);
 	padding: var(--spacing-2) var(--spacing-2);

-	--tab-content-padding: 0;
-	--tab-text-color: var(--l1-foreground);
-	--tab-active-text-color: var(--l1-foreground);
+	--tabs-content-padding: 0;
+	--tabs-text-color: var(--l1-foreground);
+	--tabs-active-text-color: var(--l1-foreground);
 }

 .pageError {
--- a/frontend/src/container/LLMObservability/LLMObservability.module.scss
+++ b/frontend/src/container/LLMObservability/LLMObservability.module.scss
@@ -4,8 +4,8 @@
 	height: 100%;
 	margin-top: var(--spacing-2);
 	margin-left: var(--spacing-2);
-	--tab-text-color: var(--l1-foreground);
-	--tab-active-text-color: var(--l1-foreground);
+	--tabs-text-color: var(--l1-foreground);
+	--tabs-active-text-color: var(--l1-foreground);
 	[role='tabpanel'] {
 		margin: 0;
 		padding: var(--spacing-0) var(--spacing-4);
--- a/frontend/src/container/LLMObservability/Settings/ModelPricing/LLMObservabilityModelPricing.module.scss
+++ b/frontend/src/container/LLMObservability/Settings/ModelPricing/LLMObservabilityModelPricing.module.scss
@@ -2,10 +2,10 @@
 	display: flex;
 	flex-direction: column;
 	gap: var(--spacing-8);
-	--tab-content-padding: 0;
+	--tabs-content-padding: 0;
 	margin-top: var(--spacing-3);
-	--tab-text-color: var(--l1-foreground);
-	--tab-active-text-color: var(--l1-foreground);
+	--tabs-text-color: var(--l1-foreground);
+	--tabs-active-text-color: var(--l1-foreground);
 }

 .tabLabel {
--- a/frontend/src/container/LiveLogs/LiveLogsContainer/index.tsx
+++ b/frontend/src/container/LiveLogs/LiveLogsContainer/index.tsx
@@ -275,6 +275,7 @@ function LiveLogsContainer({
 					onClose={(): void => setIsFieldsSelectorOpen(false)}
 					signal={DataSource.LOGS}
 					requiredFields={LOGS_REQUIRED_COLUMNS}
+					allowCustomFields
 				/>
 			)}
 		</div>
--- a/frontend/src/container/LogDetailedView/logAttributeActions.utils.ts
+++ b/frontend/src/container/LogDetailedView/logAttributeActions.utils.ts
@@ -10,7 +10,7 @@ import {
 	RESTRICTED_SELECTED_FIELDS,
 } from 'container/LogsFilters/config';
 import { MetricsType } from 'container/MetricsApplication/constant';
-import { getOperatorValue } from 'container/QueryBuilder/filters/QueryBuilderSearch/utils';
+import { getOperatorValue } from 'container/QueryBuilder/filters/QueryBuilderSearchV2/utils';
 import { chooseAutocompleteFromCustomValue } from 'lib/newQueryBuilder/chooseAutocompleteFromCustomValue';
 import {
 	BaseAutocompleteData,
--- a/frontend/src/container/LogsExplorerViews/LogsActionsContainer.tsx
+++ b/frontend/src/container/LogsExplorerViews/LogsActionsContainer.tsx
@@ -113,6 +113,7 @@ function LogsActionsContainer({
 					onClose={(): void => setIsFieldsSelectorOpen(false)}
 					signal={DataSource.LOGS}
 					requiredFields={LOGS_REQUIRED_COLUMNS}
+					allowCustomFields
 				/>
 			)}
 		</div>
--- a/frontend/src/container/MCPServerSettings/ClientTabs/ClientTabs.styles.scss
+++ b/frontend/src/container/MCPServerSettings/ClientTabs/ClientTabs.styles.scss
@@ -6,8 +6,8 @@
 	}

 	// Remove default tab content padding/margin — the card provides spacing.
-	--tab-content-padding: 0;
-	--tab-content-margin: var(--spacing-4) 0 0;
+	--tabs-content-padding: 0;
+	--tabs-content-margin: var(--spacing-4) 0 0;
 }

 .mcp-client-tabs {
--- a/frontend/src/container/MeterExplorer/Explorer/TimeSeries.tsx
+++ b/frontend/src/container/MeterExplorer/Explorer/TimeSeries.tsx
@@ -9,6 +9,7 @@ import { useIsDarkMode } from 'hooks/useDarkMode';
 import { useResizeObserver } from 'hooks/useDimensions';
 import useUrlYAxisUnit from 'hooks/useUrlYAxisUnit';
 import { LegendPosition } from 'lib/uPlotV2/components/types';
+import { StackMode } from 'lib/uPlotV2/config/types';
 import { prepareChartData } from 'lib/uPlotV2/utils/dataUtils';
 import { useTimezone } from 'providers/Timezone';
 import { AppState } from 'store/reducers';
@@ -137,6 +138,7 @@ function TimeSeries({
 									key={`${WIDGET_ID}-${index}`}
 								>
 									<BarChart
+										stack={StackMode.Normal}
 										config={chart.config}
 										legendConfig={{
 											position: LegendPosition.BOTTOM,
@@ -144,7 +146,6 @@ function TimeSeries({
 										data={chart.chartData as uPlot.AlignedData}
 										width={containerDimensions.width}
 										height={containerDimensions.height}
-										isStackedBarChart
 										yAxisUnit={yAxisUnit || 'short'}
 										timezone={timezone}
 									/>
--- a/frontend/src/container/MeterExplorer/Explorer/configBuilder.ts
+++ b/frontend/src/container/MeterExplorer/Explorer/configBuilder.ts
@@ -1,6 +1,5 @@
 import { Timezone } from 'components/CustomTimePicker/timezoneUtils';
 import { PANEL_TYPES } from 'constants/queryBuilder';
-import { getInitialStackedBands } from 'container/DashboardContainer/visualization/charts/utils/stackSeriesUtils';
 import { getLegend } from 'lib/dashboard/getQueryResults';
 import getLabelName from 'lib/getLabelName';
 import {
@@ -89,9 +88,6 @@ export function buildMeterChartConfig({
 		return builder;
 	}

-	const seriesCount = (apiResponse.data.result.length ?? 0) + 1;
-	builder.setBands(getInitialStackedBands(seriesCount));
-
 	apiResponse.data.result.forEach((series) => {
 		const baseLabelName = getLabelName(
 			series.metric,
--- a/frontend/src/container/MetricsExplorer/Inspect/tests/QueryBuilder.test.tsx
+++ b/frontend/src/container/MetricsExplorer/Inspect/tests/QueryBuilder.test.tsx
@@ -42,7 +42,7 @@ jest.mock('hooks/useDebounce', () => ({
 }));

 jest.mock(
-	'container/QueryBuilder/filters/QueryBuilderSearch/OptionRenderer',
+	'container/QueryBuilder/filters/OptionRenderer/OptionRenderer',
 	() => ({
 		__esModule: true,
 		default: ({ value }: { value: string }): JSX.Element => <span>{value}</span>,
--- a/frontend/src/container/OptionsMenu/test/useOptionsMenu.test.ts
+++ b/frontend/src/container/OptionsMenu/test/useOptionsMenu.test.ts
@@ -296,12 +296,12 @@ describe('useOptionsMenu', () => {
 				}),
 			);

-			// New order: [attribute.service.name, log.body, resource.service.name, log.timestamp]
+			// New order: [attribute:service.name, log:body, resource:service.name, log:timestamp]
 			result.current.config.addColumn?.onReorder([
-				'attribute.service.name',
-				'log.body',
-				'resource.service.name',
-				'log.timestamp',
+				'attribute:service.name:string',
+				'log:body:string',
+				'resource:service.name:string',
+				'log:timestamp',
 			]);

 			expect(mockUpdateColumns).toHaveBeenCalledTimes(1);
@@ -309,13 +309,13 @@ describe('useOptionsMenu', () => {
 			expect(
 				reordered.map(
 					(c: { name: string; fieldContext: string }) =>
-						`${c.fieldContext}.${c.name}`,
+						`${c.fieldContext}:${c.name}`,
 				),
 			).toStrictEqual([
-				'attribute.service.name',
-				'log.body',
-				'resource.service.name',
-				'log.timestamp',
+				'attribute:service.name',
+				'log:body',
+				'resource:service.name',
+				'log:timestamp',
 			]);
 		});

@@ -329,11 +329,11 @@ describe('useOptionsMenu', () => {

 			result.current.config.addColumn?.onReorder([
 				'state-indicator',
-				'log.timestamp',
+				'log:timestamp',
 				'unknown.composite',
-				'log.body',
-				'resource.service.name',
-				'attribute.service.name',
+				'log:body:string',
+				'resource:service.name:string',
+				'attribute:service.name:string',
 			]);

 			const reordered = mockUpdateColumns.mock.calls[0][0];
@@ -341,13 +341,13 @@ describe('useOptionsMenu', () => {
 			expect(
 				reordered.map(
 					(c: { name: string; fieldContext: string }) =>
-						`${c.fieldContext}.${c.name}`,
+						`${c.fieldContext}:${c.name}`,
 				),
 			).toStrictEqual([
-				'log.timestamp',
-				'log.body',
-				'resource.service.name',
-				'attribute.service.name',
+				'log:timestamp',
+				'log:body',
+				'resource:service.name',
+				'attribute:service.name',
 			]);
 		});

@@ -359,17 +359,17 @@ describe('useOptionsMenu', () => {
 				}),
 			);

-			// Removing 'resource.service.name' should drop ONLY the resource variant.
-			result.current.config.addColumn?.onRemove('resource.service.name');
+			// Removing 'resource:service.name' should drop ONLY the resource variant.
+			result.current.config.addColumn?.onRemove('resource:service.name:string');

 			expect(mockUpdateColumns).toHaveBeenCalledTimes(1);
 			const remaining = mockUpdateColumns.mock.calls[0][0];
 			expect(
 				remaining.map(
 					(c: { name: string; fieldContext: string }) =>
-						`${c.fieldContext}.${c.name}`,
+						`${c.fieldContext}:${c.name}`,
 				),
-			).toStrictEqual(['log.body', 'attribute.service.name', 'log.timestamp']);
+			).toStrictEqual(['log:body', 'attribute:service.name', 'log:timestamp']);
 		});

 		it('removing by a non-matching composite ID is a no-op (filter returns the full list)', () => {
--- a/frontend/src/container/OptionsMenu/constants.ts
+++ b/frontend/src/container/OptionsMenu/constants.ts
@@ -56,7 +56,7 @@ export function dedupeColumnsByCompositeKey(
 	const seen = new Set<string>();
 	let hasDuplicate = false;
 	const deduped = columns.filter((c) => {
-		const key = buildCompositeKey(c.name, c.fieldContext);
+		const key = buildCompositeKey(c.name, c.fieldContext, c.fieldDataType);
 		if (seen.has(key)) {
 			hasDuplicate = true;
 			return false;
--- a/frontend/src/container/OptionsMenu/useOptionsMenu.ts
+++ b/frontend/src/container/OptionsMenu/useOptionsMenu.ts
@@ -281,7 +281,8 @@ const useOptionsMenu = ({
 	const handleRemoveSelectedColumn = useCallback(
 		(columnKey: string) => {
 			const newSelectedColumns = preferences?.columns?.filter(
-				(f) => buildCompositeKey(f.name, f.fieldContext) !== columnKey,
+				(f) =>
+					buildCompositeKey(f.name, f.fieldContext, f.fieldDataType) !== columnKey,
 			);

 			if (!newSelectedColumns?.length && dataSource !== DataSource.LOGS) {
@@ -364,7 +365,10 @@ const useOptionsMenu = ({
 		(orderedIds: string[]): void => {
 			const current = preferences?.columns ?? [];
 			const byCompositeKey = new Map(
-				current.map((f) => [buildCompositeKey(f.name, f.fieldContext), f]),
+				current.map((f) => [
+					buildCompositeKey(f.name, f.fieldContext, f.fieldDataType),
+					f,
+				]),
 			);
 			const reordered = orderedIds
 				.map((id) => byCompositeKey.get(id))
--- a/frontend/src/container/OptionsMenu/utils.ts
+++ b/frontend/src/container/OptionsMenu/utils.ts
@@ -15,8 +15,11 @@ export const getOptionsFromKeys = (
 	);
 };

-// Composite identity for a column. Disambiguates same-name fields across
-// different fieldContexts (e.g. resource.service.name vs attribute.service.name).
-// Falls back to bare name when context is missing.
-export const buildCompositeKey = (name: string, context?: string): string =>
-	context ? `${context}.${name}` : name;
+export const buildCompositeKey = (
+	name: string,
+	context?: string,
+	dataType?: string,
+): string => {
+	const withContext = context ? `${context}:${name}` : name;
+	return dataType ? `${withContext}:${dataType}` : withContext;
+};
--- a/frontend/src/container/PanelWrapper/tests/snapshots/ValuePanelWrapper.test.tsx.snap
+++ b/frontend/src/container/PanelWrapper/tests/snapshots/ValuePanelWrapper.test.tsx.snap
@@ -35,7 +35,7 @@ exports[`Value panel wrappper tests should render tooltip when there are conflic
    class="c0"
  >
    <p
-      class="_typography_ulrzs_1"
+      class="_typography_j4pmm_1"
      data-slot="typography"
      data-variant="text"
    />
@@ -50,7 +50,7 @@ exports[`Value panel wrappper tests should render tooltip when there are conflic
        class="value-text-container"
      >
        <p
-          class="_typography_ulrzs_1 value-graph-text"
+          class="_typography_j4pmm_1 value-graph-text"
          data-slot="typography"
          data-testid="value-graph-text"
          data-variant="text"
@@ -59,7 +59,7 @@ exports[`Value panel wrappper tests should render tooltip when there are conflic
          295.43
        </p>
        <p
-          class="_typography_ulrzs_1 value-graph-unit"
+          class="_typography_j4pmm_1 value-graph-unit"
          data-slot="typography"
          data-testid="value-graph-suffix-unit"
          data-variant="text"
--- a/frontend/src/container/PipelinePage/tests/snapshots/DragAction.test.tsx.snap
+++ b/frontend/src/container/PipelinePage/tests/snapshots/DragAction.test.tsx.snap
@@ -22,11 +22,11 @@ exports[`PipelinePage container test should render DragAction section 1`] = `
    class="c0"
  >
    <div
-      class="_switch-wrapper_jbsv7_1"
+      class="_switch-wrapper_1a8sn_6"
    >
      <button
        aria-checked="true"
-        class="_switch_jbsv7_1"
+        class="_switch_1a8sn_6"
        data-color="robin"
        data-state="checked"
        id=":r0:"
@@ -35,7 +35,7 @@ exports[`PipelinePage container test should render DragAction section 1`] = `
        value="on"
      >
        <span
-          class="_switch__thumb_jbsv7_59"
+          class="_switch__thumb_1a8sn_71"
          data-state="checked"
        />
      </button>
--- a/frontend/src/container/PipelinePage/tests/snapshots/PipelinePageLayout.test.tsx.snap
+++ b/frontend/src/container/PipelinePage/tests/snapshots/PipelinePageLayout.test.tsx.snap
@@ -74,7 +74,7 @@ exports[`PipelinePage container test should render PipelinePageLayout section 1`
            />
            <div>
              <p
-                class="_typography_ulrzs_1"
+                class="_typography_j4pmm_1"
                data-slot="typography"
                data-variant="text"
              >
--- a/frontend/src/container/QueryBuilder/QueryBuilder.interfaces.ts
+++ b/frontend/src/container/QueryBuilder/QueryBuilder.interfaces.ts
@@ -1,11 +1,15 @@
 import { ReactNode } from 'react';
 import { PANEL_TYPES } from 'constants/queryBuilder';
-import { WhereClauseConfig } from 'hooks/queryBuilder/useAutoComplete';
 import { IBuilderQuery } from 'types/api/queryBuilder/queryBuilderData';
 import { DataSource } from 'types/common/queryBuilder';

 import { OrderByFilterProps } from './filters/OrderByFilter/OrderByFilter.interfaces';

+export type WhereClauseConfig = {
+	customKey: string;
+	customOp: string;
+};
+
 type FilterConfigs = {
 	[Key in keyof Omit<IBuilderQuery, 'filters'>]: {
 		isHidden: boolean;
--- a/frontend/src/container/QueryBuilder/filters/AggregateEveryFilter/index.tsx
+++ b/frontend/src/container/QueryBuilder/filters/AggregateEveryFilter/index.tsx
@@ -1,45 +0,0 @@
-import { useMemo } from 'react';
-import { InputNumber, InputNumberProps } from 'antd';
-import { IBuilderQuery } from 'types/api/queryBuilder/queryBuilderData';
-import { DataSource } from 'types/common/queryBuilder';
-
-import { selectStyle } from '../QueryBuilderSearch/config';
-
-function AggregateEveryFilter({
-	onChange,
-	query,
-	disabled,
-}: AggregateEveryFilterProps): JSX.Element {
-	const isMetricsDataSource = useMemo(
-		() => query.dataSource === DataSource.METRICS,
-		[query.dataSource],
-	);
-
-	const onChangeHandler: InputNumberProps<number>['onChange'] = (event) => {
-		if (event && event >= 0) {
-			onChange(event);
-		}
-	};
-
-	const isDisabled =
-		(isMetricsDataSource && !query.aggregateAttribute?.key) || disabled;
-
-	return (
-		<InputNumber
-			placeholder="Enter in seconds"
-			disabled={isDisabled}
-			style={selectStyle}
-			value={query?.stepInterval}
-			onChange={onChangeHandler}
-			min={0}
-		/>
-	);
-}
-
-interface AggregateEveryFilterProps {
-	onChange: (values: number) => void;
-	query: IBuilderQuery;
-	disabled: boolean;
-}
-
-export default AggregateEveryFilter;
--- a/frontend/src/container/QueryBuilder/filters/AggregatorFilter/AggregatorFilter.tsx
+++ b/frontend/src/container/QueryBuilder/filters/AggregatorFilter/AggregatorFilter.tsx
@@ -24,8 +24,8 @@ import { DataSource } from 'types/common/queryBuilder';
 import { ExtendedSelectOption } from 'types/common/select';
 import { useSelectPopupContainer } from 'utils/selectPopupContainer';

-import { selectStyle } from '../QueryBuilderSearch/config';
-import OptionRenderer from '../QueryBuilderSearch/OptionRenderer';
+import { selectStyle } from '../QueryBuilderSearchV2/config';
+import OptionRenderer from '../OptionRenderer/OptionRenderer';
 // ** Types
 import { AgregatorFilterProps } from './AggregatorFilter.intefaces';

--- a/frontend/src/container/QueryBuilder/filters/Formula/Limit/Limit.tsx
+++ b/frontend/src/container/QueryBuilder/filters/Formula/Limit/Limit.tsx
@@ -1,6 +1,6 @@
 import { InputNumber } from 'antd';

-import { selectStyle } from '../../QueryBuilderSearch/config';
+import { selectStyle } from '../../QueryBuilderSearchV2/config';
 import { handleKeyDownLimitFilter } from '../../utils';
 import { LimitFilterProps } from './types';

--- a/frontend/src/container/QueryBuilder/filters/Formula/OrderBy/OrderByFilter.tsx
+++ b/frontend/src/container/QueryBuilder/filters/Formula/OrderBy/OrderByFilter.tsx
@@ -4,7 +4,7 @@ import { useGetAggregateKeys } from 'hooks/queryBuilder/useGetAggregateKeys';
 import { MetricAggregateOperator } from 'types/common/queryBuilder';
 import { useSelectPopupContainer } from 'utils/selectPopupContainer';

-import { selectStyle } from '../../QueryBuilderSearch/config';
+import { selectStyle } from '../../QueryBuilderSearchV2/config';
 import { OrderByProps } from './types';
 import { useOrderByFormulaFilter } from './useOrderByFormulaFilter';

--- a/frontend/src/container/QueryBuilder/filters/Formula/OrderBy/useOrderByFormulaFilter.tsx
+++ b/frontend/src/container/QueryBuilder/filters/Formula/OrderBy/useOrderByFormulaFilter.tsx
@@ -16,7 +16,7 @@ import {
 	mapLabelValuePairs,
 	orderByValueDelimiter,
 } from '../../OrderByFilter/utils';
-import { getRemoveOrderFromValue } from '../../QueryBuilderSearch/utils';
+import { getRemoveOrderFromValue } from '../../QueryBuilderSearchV2/utils';
 import { getUniqueOrderByValues, getValidOrderByResult } from '../../utils';
 import { IOrderByFormulaFilterProps } from './types';
 import { transformToOrderByStringValuesByFormula } from './utils';
--- a/frontend/src/container/QueryBuilder/filters/GroupByFilter/GroupByFilter.tsx
+++ b/frontend/src/container/QueryBuilder/filters/GroupByFilter/GroupByFilter.tsx
@@ -23,8 +23,8 @@ import { DataSource } from 'types/common/queryBuilder';
 import { SelectOption } from 'types/common/select';
 import { useSelectPopupContainer } from 'utils/selectPopupContainer';

-import { selectStyle } from '../QueryBuilderSearch/config';
-import OptionRenderer from '../QueryBuilderSearch/OptionRenderer';
+import { selectStyle } from '../QueryBuilderSearchV2/config';
+import OptionRenderer from '../OptionRenderer/OptionRenderer';
 import { GroupByFilterProps } from './GroupByFilter.interfaces';

 export const GroupByFilter = memo(function GroupByFilter({
--- a/frontend/src/container/QueryBuilder/filters/LimitFilter/LimitFilter.tsx
+++ b/frontend/src/container/QueryBuilder/filters/LimitFilter/LimitFilter.tsx
@@ -1,31 +0,0 @@
-import { InputNumber } from 'antd';
-import { IBuilderQuery } from 'types/api/queryBuilder/queryBuilderData';
-import { DataSource } from 'types/common/queryBuilder';
-
-import { selectStyle } from '../QueryBuilderSearch/config';
-import { handleKeyDownLimitFilter } from '../utils';
-
-function LimitFilter({ onChange, query }: LimitFilterProps): JSX.Element {
-	const isMetricsDataSource = query.dataSource === DataSource.METRICS;
-
-	const isDisabled = isMetricsDataSource && !query.aggregateAttribute?.key;
-
-	return (
-		<InputNumber
-			min={1}
-			type="number"
-			value={query.limit}
-			style={selectStyle}
-			disabled={isDisabled}
-			onChange={onChange}
-			onKeyDown={handleKeyDownLimitFilter}
-		/>
-	);
-}
-
-interface LimitFilterProps {
-	onChange: (values: number | null) => void;
-	query: IBuilderQuery;
-}
-
-export default LimitFilter;
--- a/frontend/src/container/QueryBuilder/filters/MetricNameSelector/MetricNameSelector.test.tsx
+++ b/frontend/src/container/QueryBuilder/filters/MetricNameSelector/MetricNameSelector.test.tsx
@@ -31,7 +31,7 @@ jest.mock('hooks/useDebounce', () => ({
 	default: <T,>(value: T): T => value,
 }));

-jest.mock('../QueryBuilderSearch/OptionRenderer', () => ({
+jest.mock('../OptionRenderer/OptionRenderer', () => ({
 	__esModule: true,
 	default: ({ value }: { value: string }): JSX.Element => <span>{value}</span>,
 }));
--- a/frontend/src/container/QueryBuilder/filters/MetricNameSelector/MetricNameSelector.tsx
+++ b/frontend/src/container/QueryBuilder/filters/MetricNameSelector/MetricNameSelector.tsx
@@ -16,8 +16,8 @@ import { MetricAggregation } from 'types/api/v5/queryRange';
 import { ExtendedSelectOption } from 'types/common/select';
 import { useSelectPopupContainer } from 'utils/selectPopupContainer';

-import { selectStyle } from '../QueryBuilderSearch/config';
-import OptionRenderer from '../QueryBuilderSearch/OptionRenderer';
+import { selectStyle } from '../QueryBuilderSearchV2/config';
+import OptionRenderer from '../OptionRenderer/OptionRenderer';

 import './MetricNameSelector.styles.scss';

--- a/frontend/src/container/QueryBuilder/filters/OperatorsSelect/OperatorsSelect.tsx
+++ b/frontend/src/container/QueryBuilder/filters/OperatorsSelect/OperatorsSelect.tsx
@@ -2,7 +2,7 @@ import { memo } from 'react';
 import { Select } from 'antd';

 // ** Types
-import { selectStyle } from '../QueryBuilderSearch/config';
+import { selectStyle } from '../QueryBuilderSearchV2/config';
 import { OperatorsSelectProps } from './OperatorsSelect.interfaces';

 export const OperatorsSelect = memo(function OperatorsSelect({
--- a/frontend/src/container/QueryBuilder/filters/QueryBuilderSearch/OptionRenderer.styles.scss
+++ b/frontend/src/container/QueryBuilder/filters/QueryBuilderSearch/OptionRenderer.styles.scss
--- a/Show More
+++ b/Show More