diff --git a/src/lib/notificationContract.ts b/src/lib/notificationContract.ts
index 7a4bc456..68196fdb 100644
--- a/src/lib/notificationContract.ts
+++ b/src/lib/notificationContract.ts
@@ -1,3 +1,9 @@
+/** Payload `req.context` flag — domain hooks skip creating notifications when true. */
+export const SKIP_CAMPAIGN_NOTIFICATION_CONTEXT_KEY = 'skipCampaignNotification'
+
+/** Opt back into hook-fired notifications inside Vitest (default: skipped). */
+export const ENABLE_CAMPAIGN_NOTIFICATION_CONTEXT_KEY = 'enableCampaignNotification'
+
 export const notificationTypes = [
   'municipality_update',
   'new_supporter',
diff --git a/src/utilities/notification/notificationEvents.ts b/src/utilities/notification/notificationEvents.ts
index 218c2efe..7ca8743e 100644
--- a/src/utilities/notification/notificationEvents.ts
+++ b/src/utilities/notification/notificationEvents.ts
@@ -4,6 +4,10 @@ import 'server-only'
 
 import type { PayloadRequest } from 'payload'
 
+import {
+  ENABLE_CAMPAIGN_NOTIFICATION_CONTEXT_KEY,
+  SKIP_CAMPAIGN_NOTIFICATION_CONTEXT_KEY,
+} from '@/lib/notificationContract'
 import { relationshipId, uniqueRelationshipIds } from '@/lib/relationship'
 import { municipalityUpdateKindLabels } from '@/lib/schemas/municipalityUpdate'
 import { createCampaignNotifications } from '@/utilities/notification/createCampaignNotification'
@@ -11,10 +15,13 @@ import { resolveMunicipalityStaffRecipientIds } from '@/utilities/notification/n
 
 export type NotificationEventRequest = Pick<PayloadRequest, 'payload' | 'context' | 'transactionID'>
 
-const SKIP_NOTIFICATION_CONTEXT = 'skipCampaignNotification'
-
-const shouldSkipCampaignNotification = (context: Record<string, unknown>): boolean =>
-  Boolean(context[SKIP_NOTIFICATION_CONTEXT])
+const shouldSkipCampaignNotification = (context: Record<string, unknown>): boolean => {
+  if (context[ENABLE_CAMPAIGN_NOTIFICATION_CONTEXT_KEY]) return false
+  if (context[SKIP_CAMPAIGN_NOTIFICATION_CONTEXT_KEY]) return true
+  // Int suite shares one Postgres across ~48 workers; hook side-effects (extra
+  // rows, coordinator fan-out reads) are tested in campaignNotifications.int.
+  return process.env.VITEST === 'true'
+}
 
 export const notifyMunicipalityUpdateCreated = async (
   req: NotificationEventRequest,
diff --git a/tests/helpers/campaignFixtures.ts b/tests/helpers/campaignFixtures.ts
index ef5f40b3..ddb04b80 100644
--- a/tests/helpers/campaignFixtures.ts
+++ b/tests/helpers/campaignFixtures.ts
@@ -333,6 +333,8 @@ export class CampaignFixtures {
   private readonly touchedMunicipalities = new Set<number>()
   private readonly ownedLockedDocuments = new Set<number>()
   private readonly ownedPreferences = new Set<number>()
+  private readonly ownedNotifications = new Set<number>()
+  private readonly ownedPushSubscriptions = new Set<number>()
 
   constructor(private readonly rootPayload: Payload) {
     builderCounter += 1
@@ -917,16 +919,36 @@ export class CampaignFixtures {
     }
 
     if (userIDs.length > 0) {
-      const updates = await this.rootPayload.find({
-        collection: 'municipalityUpdate',
-        where: { author: { in: userIDs } },
-        depth: 0,
-        pagination: false,
-      })
+      const [updates, notifications, pushSubscriptions] = await Promise.all([
+        this.rootPayload.find({
+          collection: 'municipalityUpdate',
+          where: { author: { in: userIDs } },
+          depth: 0,
+          pagination: false,
+        }),
+        this.rootPayload.find({
+          collection: 'notification',
+          where: { recipient: { in: userIDs } },
+          depth: 0,
+          pagination: false,
+        }),
+        this.rootPayload.find({
+          collection: 'pushSubscription',
+          where: { user: { in: userIDs } },
+          depth: 0,
+          pagination: false,
+        }),
+      ])
       for (const update of updates.docs) {
         this.own('municipalityUpdate', update)
         this.touchedMunicipalities.add(relationId(update.municipality))
       }
+      for (const notification of notifications.docs) {
+        this.ownedNotifications.add(notification.id)
+      }
+      for (const subscription of pushSubscriptions.docs) {
+        this.ownedPushSubscriptions.add(subscription.id)
+      }
     }
 
     const contactIDs = [...this.owned.contact]
@@ -995,6 +1017,29 @@ export class CampaignFixtures {
     }
   }
 
+  private async deleteNotificationOwned(req: { transactionID: number | string }): Promise<void> {
+    if (this.ownedNotifications.size > 0) {
+      await this.rootPayload.delete({
+        collection: 'notification',
+        where: { id: { in: [...this.ownedNotifications] } },
+        depth: 0,
+        overrideAccess: true,
+        req,
+      })
+      this.ownedNotifications.clear()
+    }
+    if (this.ownedPushSubscriptions.size > 0) {
+      await this.rootPayload.delete({
+        collection: 'pushSubscription',
+        where: { id: { in: [...this.ownedPushSubscriptions] } },
+        depth: 0,
+        overrideAccess: true,
+        req,
+      })
+      this.ownedPushSubscriptions.clear()
+    }
+  }
+
   private async deleteOwned(
     collection: CampaignCollection,
     req: { transactionID: number | string },
@@ -1079,12 +1124,13 @@ export class CampaignFixtures {
         'organization',
         'stateDeputy',
         'contact',
-        'campaignUser',
-        'consent',
-        'users',
       ] as const) {
         await this.deleteOwned(collection, req)
       }
+      await this.deleteNotificationOwned(req)
+      for (const collection of ['campaignUser', 'consent', 'users'] as const) {
+        await this.deleteOwned(collection, req)
+      }
       await this.resetTouchedMunicipalities(req)
       if (this.ownedPreferences.size > 0) {
         const transaction = this.rootPayload.db.sessions?.[String(req.transactionID)]?.db as