diff --git a/packages/pieces/common/package.json b/packages/pieces/common/package.json
index 0b4fdfeca855..bf4944d7dee5 100644
--- a/packages/pieces/common/package.json
+++ b/packages/pieces/common/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@activepieces/pieces-common",
-  "version": "0.12.8",
+  "version": "0.12.9",
   "type": "commonjs",
   "sideEffects": false,
   "main": "./dist/src/index.js",
diff --git a/packages/pieces/common/src/lib/helpers/index.ts b/packages/pieces/common/src/lib/helpers/index.ts
index 5b9776e187ce..2b7af46ec397 100644
--- a/packages/pieces/common/src/lib/helpers/index.ts
+++ b/packages/pieces/common/src/lib/helpers/index.ts
@@ -1,4 +1,5 @@
 import {
+  ActionClassification,
   OAuth2PropertyValue,
   PieceAuthProperty,
   Property,
@@ -148,6 +149,7 @@ export function createCustomApiCallAction<
   props,
   extraProps,
   authLocation = 'headers',
+  classification = 'WRITE',
 }: {
   auth?: PieceAuth;
   baseUrl: BaseUrlGetter<PieceAuth>;
@@ -172,10 +174,13 @@ export function createCustomApiCallAction<
   };
   extraProps?: InputPropertyMap;
   authLocation?: 'headers' | 'queryParams';
+  // The method is caller-supplied at runtime, so a single tag has to assume mutation.
+  classification?: ActionClassification;
 }) {
   return createAction({
     audience: 'human',
     name: name ? name : 'custom_api_call',
+    classification,
     displayName: displayName ? displayName : 'Custom API Call',
     description: description
       ? description
diff --git a/packages/server/api/src/app/ee/platform/platform-teardown-jobs.ts b/packages/server/api/src/app/ee/platform/platform-teardown-jobs.ts
index a2062ad35afd..608d5b0eb3b0 100644
--- a/packages/server/api/src/app/ee/platform/platform-teardown-jobs.ts
+++ b/packages/server/api/src/app/ee/platform/platform-teardown-jobs.ts
@@ -1,4 +1,4 @@
-import { isNil, unique } from '@activepieces/core-utils'
+import { isNil, tryCatch, unique } from '@activepieces/core-utils'
 import { Flow, FlowOperationType, FlowStatus, UserStatus } from '@activepieces/shared'
 import { FastifyBaseLogger } from 'fastify'
 import { IsNull } from 'typeorm'
@@ -18,6 +18,7 @@ import { PieceMetadataEntity } from '../../pieces/metadata/piece-metadata-entity
 import { PlatformEntity } from '../../platform/platform.entity'
 import { ProjectEntity } from '../../project/project-entity'
 import { ToolSearchIndexEntity } from '../../tool-search/tool-search-index.entity'
+import { triggerSourceService } from '../../trigger/trigger-source/trigger-source-service'
 import { userRepo } from '../../user/user-service'
 import { userInvitationRepo } from '../../user-invitations/user-invitation.service'
 import { VariableEntity } from '../../variable/variable.entity'
@@ -41,7 +42,7 @@ export const platformTeardownJobs = (log: FastifyBaseLogger) => ({
     hardDeletePlatformHandler: async (data: SystemJobData<SystemJobName.HARD_DELETE_PLATFORM>) => {
         const { platformId } = data
 
-        await cutOffPlatformAccess({ platformId, log })
+        await beginPlatformTeardown({ platformId, log })
 
         const flows = await listFlowsByPlatform(platformId)
         await drainFlows({ flows, log })
@@ -79,19 +80,19 @@ export const platformTeardownJobs = (log: FastifyBaseLogger) => ({
     },
 })
 
-export async function cutOffPlatformAccess({ platformId, log }: CutOffPlatformAccessParams): Promise<void> {
+export async function beginPlatformTeardown({ platformId, log }: BeginPlatformTeardownParams): Promise<void> {
     await userRepo().update({ platformId }, { status: UserStatus.INACTIVE })
     await apiKeyService.deleteAllByPlatformId({ platformId })
     await stopPlatformExecution({ platformId, log })
 }
 
-async function stopPlatformExecution({ platformId, log }: CutOffPlatformAccessParams): Promise<void> {
+async function stopPlatformExecution({ platformId, log }: BeginPlatformTeardownParams): Promise<void> {
     const flows = await listFlowsByPlatform(platformId)
     for (const flow of flows) {
         if (flow.status === FlowStatus.DISABLED || isNil(flow.publishedVersionId)) {
             continue
         }
-        await flowService(log).update({
+        const { error } = await tryCatch(async () => flowService(log).update({
             id: flow.id,
             userId: null,
             projectId: flow.projectId,
@@ -101,7 +102,32 @@ async function stopPlatformExecution({ platformId, log }: CutOffPlatformAccessPa
                 type: FlowOperationType.CHANGE_STATUS,
                 request: { status: FlowStatus.DISABLED },
             },
-        })
+        }))
+        if (isNil(error)) {
+            continue
+        }
+        log.warn({
+            error,
+            flow: { id: flow.id },
+            project: { id: flow.projectId },
+            platform: { id: platformId },
+        }, '[stopPlatformExecution] Trigger disable failed; forcing trigger-source removal so no new webhooks admit runs')
+        const { error: fallbackError } = await tryCatch(async () => triggerSourceService(log).disable({
+            flowId: flow.id,
+            projectId: flow.projectId,
+            simulate: false,
+            ignoreError: true,
+        }))
+        if (!isNil(fallbackError)) {
+            log.warn({
+                error: fallbackError,
+                flow: { id: flow.id },
+                project: { id: flow.projectId },
+                platform: { id: platformId },
+            }, '[stopPlatformExecution] Fallback trigger-source disable also failed; teardown will continue and drainFlows will hard-delete the flow row anyway')
+        }
+        await flowRepo().update({ id: flow.id }, { status: FlowStatus.DISABLED })
+        await flowExecutionCache(log).invalidate(flow.id)
     }
     await flowExecutionCache(log).invalidate(...flows.map((flow) => flow.id))
 }
@@ -153,7 +179,7 @@ type DrainFlowsParams = {
     log: FastifyBaseLogger
 }
 
-type CutOffPlatformAccessParams = {
+type BeginPlatformTeardownParams = {
     platformId: string
     log: FastifyBaseLogger
 }
diff --git a/packages/server/api/src/app/platform/platform.controller.ts b/packages/server/api/src/app/platform/platform.controller.ts
index 8c4cd68b023b..1a1d23fd4759 100644
--- a/packages/server/api/src/app/platform/platform.controller.ts
+++ b/packages/server/api/src/app/platform/platform.controller.ts
@@ -9,7 +9,7 @@ import { chatVisibilityHelper } from '../ee/agent/chat-visibility-helper'
 import { platformToEditMustBeOwnedByCurrentUser } from '../ee/authentication/ee-authorization'
 import { emailService } from '../ee/helper/email/email-service'
 import { platformPlanService } from '../ee/platform/platform-plan/platform-plan.service'
-import { cutOffPlatformAccess } from '../ee/platform/platform-teardown-jobs'
+import { beginPlatformTeardown } from '../ee/platform/platform-teardown-jobs'
 import { fileService } from '../file/file.service'
 import { attachMultipartFieldsToBody } from '../helper/multipart-body'
 import { system } from '../helper/system/system'
@@ -168,7 +168,7 @@ export const platformController: FastifyPluginAsyncZod = async (app) => {
                 },
             })
 
-            await cutOffPlatformAccess({ platformId, log: req.log })
+            await beginPlatformTeardown({ platformId, log: req.log })
 
             const { error: emailError } = await tryCatch(() => emailService(req.log).sendPlatformDeleted({
                 platformId,