diff --git a/desktop-package/package.json b/desktop-package/package.json
index 0b7e3cb98d..2291d5c053 100644
--- a/desktop-package/package.json
+++ b/desktop-package/package.json
@@ -1,6 +1,6 @@
 {
   "name": "desktop",
-  "version": "0.6.266",
+  "version": "0.6.271",
   "main": "dist/main/electron.js",
   "author": "Hardcore Engineering <hey@huly.io>",
   "template": "@hcengineering/default-package",
diff --git a/desktop/package.json b/desktop/package.json
index 686f32fe53..b6aa591571 100644
--- a/desktop/package.json
+++ b/desktop/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hcengineering/desktop",
-  "version": "0.6.266",
+  "version": "0.6.271",
   "main": "dist/main/electron.js",
   "template": "@hcengineering/webpack-package",
   "scripts": {
diff --git a/models/server-notification/src/index.ts b/models/server-notification/src/index.ts
index 6fc68eab55..d6e371b5a4 100644
--- a/models/server-notification/src/index.ts
+++ b/models/server-notification/src/index.ts
@@ -72,14 +72,6 @@ export function createModel (builder: Builder): void {
     TNotificationProviderResources
   )
 
-  builder.createDoc(serverCore.class.Trigger, core.space.Model, {
-    trigger: serverNotification.trigger.OnActivityNotificationViewed,
-    txMatch: {
-      _class: core.class.TxUpdateDoc,
-      objectClass: notification.class.ActivityInboxNotification
-    }
-  })
-
   builder.createDoc(serverCore.class.Trigger, core.space.Model, {
     trigger: serverNotification.trigger.OnAttributeCreate,
     txMatch: {
diff --git a/plugins/activity-resources/src/activityMessagesUtils.ts b/plugins/activity-resources/src/activityMessagesUtils.ts
index 72d7ca9644..4d503fd869 100644
--- a/plugins/activity-resources/src/activityMessagesUtils.ts
+++ b/plugins/activity-resources/src/activityMessagesUtils.ts
@@ -579,7 +579,7 @@ export function isActivityMessage (message?: Doc): message is ActivityMessage {
   return getClient().getHierarchy().isDerived(message._class, activity.class.ActivityMessage)
 }
 
-export function isReactionMessage (message?: ActivityMessage): boolean {
+export function isReactionMessage (message?: ActivityMessage): message is DocUpdateMessage {
   if (message === undefined) {
     return false
   }
diff --git a/plugins/chunter-resources/src/utils.ts b/plugins/chunter-resources/src/utils.ts
index ea07a1bc0b..05baaf95ce 100644
--- a/plugins/chunter-resources/src/utils.ts
+++ b/plugins/chunter-resources/src/utils.ts
@@ -46,6 +46,7 @@ import { getClient } from '@hcengineering/presentation'
 import { type AnySvelteComponent } from '@hcengineering/ui'
 import { classIcon, getDocLinkTitle, getDocTitle } from '@hcengineering/view-resources'
 import { get, writable, type Unsubscriber } from 'svelte/store'
+import { isReactionMessage } from '@hcengineering/activity-resources'
 
 import ChannelIcon from './components/ChannelIcon.svelte'
 import DirectIcon from './components/DirectIcon.svelte'
@@ -439,7 +440,16 @@ export async function readChannelMessages (
     const allIds = getAllIds(messages).filter((id) => !readMessages.has(id))
 
     const notifications = get(inboxClient.activityInboxNotifications)
-      .filter(({ _id, attachedTo }) => allIds.includes(attachedTo))
+      .filter(({ attachedTo, $lookup, isViewed }) => {
+        if (isViewed) return false
+        const includes = allIds.includes(attachedTo)
+        if (includes) return true
+        const msg = $lookup?.attachedTo
+        if (isReactionMessage(msg)) {
+          return allIds.includes(msg.attachedTo as Ref<ActivityMessage>)
+        }
+        return false
+      })
       .map((n) => n._id)
 
     const relatedMentions = get(inboxClient.otherInboxNotifications)
diff --git a/server-plugins/notification-resources/src/index.ts b/server-plugins/notification-resources/src/index.ts
index a3113231f4..2d6012e6b3 100644
--- a/server-plugins/notification-resources/src/index.ts
+++ b/server-plugins/notification-resources/src/index.ts
@@ -1516,58 +1516,6 @@ export async function removeDocInboxNotifications (_id: Ref<ActivityMessage>, co
   )
 }
 
-async function OnActivityNotificationViewed (
-  tx: TxUpdateDoc<InboxNotification>,
-  control: TriggerControl
-): Promise<Tx[]> {
-  if (tx.objectClass !== notification.class.ActivityInboxNotification || tx.operations.isViewed !== true) {
-    return []
-  }
-
-  const inboxNotification = (
-    await control.findAll(
-      notification.class.ActivityInboxNotification,
-      {
-        _id: tx.objectId as Ref<ActivityInboxNotification>
-      },
-      { projection: { _id: 1, attachedTo: 1, user: 1 } }
-    )
-  )[0]
-
-  if (inboxNotification === undefined) {
-    return []
-  }
-
-  // Read reactions notifications when message is read
-  const { attachedTo, user } = inboxNotification
-
-  const reactionMessages = await control.findAll(
-    activity.class.DocUpdateMessage,
-    {
-      attachedTo,
-      objectClass: activity.class.Reaction
-    },
-    { projection: { _id: 1 } }
-  )
-
-  if (reactionMessages.length === 0) {
-    return []
-  }
-
-  const reactionNotifications = await control.findAll(
-    notification.class.ActivityInboxNotification,
-    {
-      attachedTo: { $in: reactionMessages.map(({ _id }) => _id) },
-      user
-    },
-    { projection: { _id: 1, _class: 1, space: 1 } }
-  )
-
-  return reactionNotifications.map(({ _id, _class, space }) =>
-    control.txFactory.createTxUpdateDoc(_class, space, _id, { isViewed: true })
-  )
-}
-
 export async function getCollaborators (
   doc: Doc,
   control: TriggerControl,
@@ -1659,7 +1607,6 @@ export default async () => ({
   trigger: {
     OnAttributeCreate,
     OnAttributeUpdate,
-    OnActivityNotificationViewed,
     OnDocRemove
   },
   function: {
diff --git a/server-plugins/notification/src/index.ts b/server-plugins/notification/src/index.ts
index a6561a3760..331cf45822 100644
--- a/server-plugins/notification/src/index.ts
+++ b/server-plugins/notification/src/index.ts
@@ -180,7 +180,6 @@ export default plugin(serverNotificationId, {
     OnAttributeCreate: '' as Resource<TriggerFunc>,
     OnAttributeUpdate: '' as Resource<TriggerFunc>,
     OnReactionChanged: '' as Resource<TriggerFunc>,
-    OnActivityNotificationViewed: '' as Resource<TriggerFunc>,
     OnDocRemove: '' as Resource<TriggerFunc>
   },
   function: {