diff --git a/common/scripts/version.txt b/common/scripts/version.txt
index ab50fbb0e4..9ccacbd7cd 100644
--- a/common/scripts/version.txt
+++ b/common/scripts/version.txt
@@ -1 +1 @@
-"0.7.87"
+"0.7.110"
diff --git a/desktop/src/ui/platform.ts b/desktop/src/ui/platform.ts
index 489aee08fd..cf307c2060 100644
--- a/desktop/src/ui/platform.ts
+++ b/desktop/src/ui/platform.ts
@@ -270,7 +270,7 @@ export async function configurePlatform (): Promise<void> {
   setMetadata(github.metadata.GithubClientID, config.GITHUB_CLIENTID ?? '')
   setMetadata(github.metadata.GithubURL, config.GITHUB_URL ?? '')
 
-  setMetadata(communication.metadata.Enabled, config.COMMUNICATION_API_ENABLED)
+  setMetadata(communication.metadata.Enabled, config.COMMUNICATION_API_ENABLED === 'true')
 
   if (config.MODEL_VERSION != null) {
     console.log('Minimal Model version requirement', config.MODEL_VERSION)
diff --git a/desktop/src/ui/types.ts b/desktop/src/ui/types.ts
index dd8bca81c3..04ca2bf2ae 100644
--- a/desktop/src/ui/types.ts
+++ b/desktop/src/ui/types.ts
@@ -44,7 +44,7 @@ export interface Config {
   CALDAV_SERVER_URL?: string
   EXPORT_URL?: string
   MAIL_URL?: string
-  COMMUNICATION_API_ENABLED?: boolean
+  COMMUNICATION_API_ENABLED?: string
 }
 
 export interface Branding {
diff --git a/dev/prod/public/config.json b/dev/prod/public/config.json
index 590687fcaa..9f72ba38d4 100644
--- a/dev/prod/public/config.json
+++ b/dev/prod/public/config.json
@@ -25,5 +25,5 @@
   "PUBLIC_SCHEDULE_URL": "http://huly.local:8060",
   "CALDAV_SERVER_URL": "http://huly.local:9070",
   "EXPORT_URL": "http://huly.local:4009",
-  "COMMUNICATION_API_ENABLED": true
+  "COMMUNICATION_API_ENABLED": "true"
 }
diff --git a/dev/prod/src/platform.ts b/dev/prod/src/platform.ts
index f7a7aa27aa..945bfba6cf 100644
--- a/dev/prod/src/platform.ts
+++ b/dev/prod/src/platform.ts
@@ -193,7 +193,7 @@ export interface Config {
   CALDAV_SERVER_URL?: string
   EXPORT_URL?: string
   MAIL_URL?: string,
-  COMMUNICATION_API_ENABLED?: boolean
+  COMMUNICATION_API_ENABLED?: string
 }
 
 export interface Branding {
@@ -442,7 +442,7 @@ export async function configurePlatform() {
   setMetadata(presentation.metadata.MailUrl, config.MAIL_URL)
   setMetadata(recorder.metadata.StreamUrl, config.STREAM_URL)
   setMetadata(textEditor.metadata.Collaborator, config.COLLABORATOR)
-  setMetadata(communication.metadata.Enabled, config.COMMUNICATION_API_ENABLED)
+  setMetadata(communication.metadata.Enabled, config.COMMUNICATION_API_ENABLED === 'true')
 
   if (config.MODEL_VERSION != null) {
     console.log('Minimal Model version requirement', config.MODEL_VERSION)
diff --git a/models/contact/src/migration.ts b/models/contact/src/migration.ts
index 28f9340df6..24078f5589 100644
--- a/models/contact/src/migration.ts
+++ b/models/contact/src/migration.ts
@@ -459,6 +459,33 @@ async function createUserProfiles (client: MigrationClient): Promise<void> {
   }
 }
 
+async function fixSocialIdCase (client: MigrationClient): Promise<void> {
+  const ctx = new MeasureMetricsContext('contact fixSocialIdCase', {})
+  ctx.info('Fixing social id case...')
+
+  const socialIds = await client.traverse<SocialIdentity>(DOMAIN_CHANNEL, {
+    _class: contact.class.SocialIdentity
+  })
+
+  let updated = 0
+  while (true) {
+    const docs = await socialIds.next(200)
+    if (docs === null || docs?.length === 0) {
+      break
+    }
+
+    for (const d of docs) {
+      const newKey = d.key.toLowerCase()
+      const newVal = d.value.toLowerCase()
+      if (newKey !== d.key || newVal !== d.value) {
+        await client.update(DOMAIN_CHANNEL, { _id: d._id }, { key: newKey, value: newVal })
+        updated++
+      }
+    }
+  }
+  ctx.info('Finished fixing social id case. Total updated:', { updated })
+}
+
 export const contactOperation: MigrateOperation = {
   async preMigrate (client: MigrationClient, logger: ModelLogger, mode): Promise<void> {
     await tryMigrate(mode, client, contactId, [
@@ -640,6 +667,11 @@ export const contactOperation: MigrateOperation = {
         state: 'create-user-profiles',
         mode: 'upgrade',
         func: createUserProfiles
+      },
+      {
+        state: 'fix-social-id-case',
+        mode: 'upgrade',
+        func: fixSocialIdCase
       }
     ])
   },
diff --git a/models/love/src/index.ts b/models/love/src/index.ts
index b04cc27484..22ef7df637 100644
--- a/models/love/src/index.ts
+++ b/models/love/src/index.ts
@@ -60,7 +60,8 @@ import {
   TypeRef,
   TypeString,
   UX,
-  TypeBoolean
+  TypeBoolean,
+  Hidden
 } from '@hcengineering/model'
 import calendar, { TEvent, TSchedule } from '@hcengineering/model-calendar'
 import core, { TAttachedDoc, TDoc } from '@hcengineering/model-core'
@@ -110,6 +111,7 @@ export class TRoom extends TDoc implements Room {
   y!: number
 
   @Prop(TypeString(), love.string.Language, { editor: love.component.RoomLanguageEditor })
+  @Hidden()
     language!: RoomLanguage
 
   @Prop(TypeBoolean(), love.string.StartWithTranscription)
diff --git a/plugins/love-resources/src/components/ControlBar.svelte b/plugins/love-resources/src/components/ControlBar.svelte
index b3f85026f7..587da92c8e 100644
--- a/plugins/love-resources/src/components/ControlBar.svelte
+++ b/plugins/love-resources/src/components/ControlBar.svelte
@@ -184,11 +184,11 @@
 </script>
 
 <ControlBarContainer bind:noLabel>
-  <svelte:fragment slot="right">
+  <!-- <svelte:fragment slot="right">
     {#if $isConnected && isTranscriptionAllowed() && $isTranscription}
       <RoomLanguageSelector {room} kind="icon" />
     {/if}
-  </svelte:fragment>
+  </svelte:fragment> -->
   <svelte:fragment slot="center">
     {#if room._id !== love.ids.Reception}
       <ModernButton
diff --git a/plugins/love-resources/src/components/RoomPreview.svelte b/plugins/love-resources/src/components/RoomPreview.svelte
index 8bb28798a9..4be877a545 100644
--- a/plugins/love-resources/src/components/RoomPreview.svelte
+++ b/plugins/love-resources/src/components/RoomPreview.svelte
@@ -196,9 +196,9 @@
       <span class="overflow-label text-md flex-grow">
         <Label label={getRoomLabel(room, $personByIdStore)} />
       </span>
-      {#if !isOffice(room)}
+      <!-- {#if !isOffice(room)}
         <RoomLanguage {room} />
-      {/if}
+      {/if} -->
       {#if room.access === RoomAccess.DND || room.type === RoomType.Video}
         <div class="flex-row-center flex-no-shrink h-full flex-gap-2">
           {#if room.access === RoomAccess.DND}
diff --git a/plugins/love-resources/src/components/RoomTranscriptionSettings.svelte b/plugins/love-resources/src/components/RoomTranscriptionSettings.svelte
index 36ef552fa6..9b128b8263 100644
--- a/plugins/love-resources/src/components/RoomTranscriptionSettings.svelte
+++ b/plugins/love-resources/src/components/RoomTranscriptionSettings.svelte
@@ -33,12 +33,12 @@
 </script>
 
 <div class="antiGrid">
-  <div class="antiGrid-row">
+  <!-- <div class="antiGrid-row">
     <div class="antiGrid-row__header">
       <Label label={ui.string.Language} />
     </div>
     <RoomLanguageSelector {room} />
-  </div>
+  </div> -->
   <div class="antiGrid-row">
     <div class="antiGrid-row__header">
       <Label label={love.string.StartWithTranscription} />
diff --git a/server/datalake/src/client.ts b/server/datalake/src/client.ts
index e9d5a6005c..ea8374a8ac 100644
--- a/server/datalake/src/client.ts
+++ b/server/datalake/src/client.ts
@@ -111,16 +111,17 @@ export class DatalakeClient {
     return (await response.json()) as ListObjectOutput
   }
 
-  async getObject (ctx: MeasureContext, workspace: WorkspaceUuid, objectName: string): Promise<Readable> {
+  async getObject (ctx: MeasureContext, workspace: WorkspaceUuid, objectName: string): Promise<Readable | undefined> {
     const url = this.getObjectUrl(ctx, workspace, objectName)
 
     let response
     try {
       response = await fetchSafe(ctx, url, { headers: { ...this.headers } })
     } catch (err: any) {
-      if (err.name !== 'NotFoundError') {
-        console.error('failed to get object', { workspace, objectName, err })
+      if (err.name === 'NotFoundError') {
+        return undefined
       }
+      console.error('failed to get object', { workspace, objectName, err })
       throw err
     }
 
@@ -138,7 +139,7 @@ export class DatalakeClient {
     objectName: string,
     offset: number,
     length?: number
-  ): Promise<Readable> {
+  ): Promise<Readable | undefined> {
     const url = this.getObjectUrl(ctx, workspace, objectName)
     const headers = {
       ...this.headers,
@@ -149,9 +150,10 @@ export class DatalakeClient {
     try {
       response = await fetchSafe(ctx, url, { headers })
     } catch (err: any) {
-      if (err.name !== 'NotFoundError') {
-        console.error('failed to get partial object', { workspace, objectName, err })
+      if (err.name === 'NotFoundError') {
+        return undefined
       }
+      console.error('failed to get partial object', { workspace, objectName, err })
       throw err
     }
 
diff --git a/server/datalake/src/index.ts b/server/datalake/src/index.ts
index 94a58c0230..bc5b440be9 100644
--- a/server/datalake/src/index.ts
+++ b/server/datalake/src/index.ts
@@ -33,6 +33,7 @@ import {
 import { generateToken } from '@hcengineering/server-token'
 import { type Readable } from 'stream'
 import { type UploadObjectParams, DatalakeClient } from './client'
+import { NotFoundError } from './error'
 
 export { DatalakeClient }
 
@@ -168,7 +169,11 @@ export class DatalakeService implements StorageAdapter {
 
   @withContext('get')
   async get (ctx: MeasureContext, wsIds: WorkspaceIds, objectName: string): Promise<Readable> {
-    return await this.retry(ctx, () => this.client.getObject(ctx, wsIds.uuid, objectName))
+    const object = await this.retry(ctx, () => this.client.getObject(ctx, wsIds.uuid, objectName))
+    if (object === undefined) {
+      throw new NotFoundError()
+    }
+    return object
   }
 
   @withContext('put')
@@ -199,8 +204,11 @@ export class DatalakeService implements StorageAdapter {
   @withContext('read')
   async read (ctx: MeasureContext, wsIds: WorkspaceIds, objectName: string): Promise<Buffer[]> {
     const data = await this.retry(ctx, () => this.client.getObject(ctx, wsIds.uuid, objectName))
-    const chunks: Buffer[] = []
+    if (data === undefined) {
+      throw new NotFoundError()
+    }
 
+    const chunks: Buffer[] = []
     for await (const chunk of data) {
       chunks.push(chunk)
     }
@@ -216,7 +224,13 @@ export class DatalakeService implements StorageAdapter {
     offset: number,
     length?: number
   ): Promise<Readable> {
-    return await this.retry(ctx, () => this.client.getPartialObject(ctx, wsIds.uuid, objectName, offset, length))
+    const object = await this.retry(ctx, () =>
+      this.client.getPartialObject(ctx, wsIds.uuid, objectName, offset, length)
+    )
+    if (object === undefined) {
+      throw new NotFoundError()
+    }
+    return object
   }
 
   async getUrl (ctx: MeasureContext, wsIds: WorkspaceIds, objectName: string): Promise<string> {
diff --git a/services/calendar/pod-calendar-mailer/src/__tests__/handlers.test.ts b/services/calendar/pod-calendar-mailer/src/__tests__/handlers.test.ts
index 46e58634c0..3677a31055 100644
--- a/services/calendar/pod-calendar-mailer/src/__tests__/handlers.test.ts
+++ b/services/calendar/pod-calendar-mailer/src/__tests__/handlers.test.ts
@@ -14,7 +14,7 @@
 //
 
 import { Event } from '@hcengineering/calendar'
-import { PersonId, Ref, WorkspaceUuid } from '@hcengineering/core'
+import { MeasureContext, PersonId, Ref, WorkspaceUuid } from '@hcengineering/core'
 import { Meeting, Room } from '@hcengineering/love'
 import { MeetingNotificationType } from '../notification'
 import { eventCreated, eventUpdated, eventDeleted, eventMixin } from '../handlers'
@@ -24,6 +24,10 @@ const ws = 'workspace-id' as WorkspaceUuid
 const meetingHost = 'meeting-host' as PersonId
 const meetingGuest = 'meeting-guest' as PersonId
 const room = 'room-id' as Ref<Room>
+const ctx = {
+  error: jest.fn(),
+  info: jest.fn()
+} as unknown as MeasureContext
 
 function eventFor (user: PersonId, props?: Partial<Event> | Partial<Meeting>): Event {
   return {
@@ -73,7 +77,7 @@ describe('queue message handlers', () => {
     test('there should not be notification when host creates event for himself', async () => {
       const event = eventFor(meetingHost)
 
-      await eventCreated(ws, { event, modifiedBy: meetingHost })
+      await eventCreated(ctx, ws, { event, modifiedBy: meetingHost })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
@@ -81,7 +85,7 @@ describe('queue message handlers', () => {
     test('there should not be notification when host creates event for guest', async () => {
       const event = eventFor(meetingGuest)
 
-      await eventCreated(ws, { event, modifiedBy: meetingHost })
+      await eventCreated(ctx, ws, { event, modifiedBy: meetingHost })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
@@ -91,9 +95,9 @@ describe('queue message handlers', () => {
       // A new event which is already a meeting is created for the new participant
       const event = eventFor(meetingGuest, { room })
 
-      await eventCreated(ws, { event, modifiedBy: meetingHost })
+      await eventCreated(ctx, ws, { event, modifiedBy: meetingHost })
 
-      expect(createNotificationSpy).toHaveBeenCalledWith(ws, MeetingNotificationType.Scheduled, event, meetingHost)
+      expect(createNotificationSpy).toHaveBeenCalledWith(ctx, ws, MeetingNotificationType.Scheduled, event, meetingHost)
     })
 
     test('there should not be notification when host creates meeting for guest in the past', async () => {
@@ -101,7 +105,7 @@ describe('queue message handlers', () => {
       // A new event which is already a meeting is created for the new participant
       const event = eventFor(meetingGuest, { room, date: pastDate() })
 
-      await eventCreated(ws, { event, modifiedBy: meetingHost })
+      await eventCreated(ctx, ws, { event, modifiedBy: meetingHost })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
@@ -111,7 +115,7 @@ describe('queue message handlers', () => {
     test('there should be notification when host updates event for himself', async () => {
       const event = eventFor(meetingHost)
 
-      await eventUpdated(ws, { event, modifiedBy: meetingHost, changes: { date: Date.now() } })
+      await eventUpdated(ctx, ws, { event, modifiedBy: meetingHost, changes: { date: Date.now() } })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
@@ -119,7 +123,7 @@ describe('queue message handlers', () => {
     test('there should not be notification when host updates event for guest', async () => {
       const event = eventFor(meetingGuest)
 
-      await eventUpdated(ws, { event, modifiedBy: meetingHost, changes: { date: Date.now() } })
+      await eventUpdated(ctx, ws, { event, modifiedBy: meetingHost, changes: { date: Date.now() } })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
@@ -127,15 +131,21 @@ describe('queue message handlers', () => {
     test('there should be notification when host updates meeting for guest', async () => {
       const event = eventFor(meetingGuest, { room })
 
-      await eventUpdated(ws, { event, modifiedBy: meetingHost, changes: { date: Date.now() } })
+      await eventUpdated(ctx, ws, { event, modifiedBy: meetingHost, changes: { date: Date.now() } })
 
-      expect(createNotificationSpy).toHaveBeenCalledWith(ws, MeetingNotificationType.Rescheduled, event, meetingHost)
+      expect(createNotificationSpy).toHaveBeenCalledWith(
+        ctx,
+        ws,
+        MeetingNotificationType.Rescheduled,
+        event,
+        meetingHost
+      )
     })
 
     test('there should be notification when host updates meeting for guest in the past', async () => {
       const event = eventFor(meetingGuest, { room, date: pastDate() })
 
-      await eventUpdated(ws, { event, modifiedBy: meetingHost, changes: { date: Date.now() } })
+      await eventUpdated(ctx, ws, { event, modifiedBy: meetingHost, changes: { date: Date.now() } })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
@@ -143,7 +153,7 @@ describe('queue message handlers', () => {
     test('there should not be notification when host updates meeting for himself', async () => {
       const event = eventFor(meetingHost, { room })
 
-      await eventUpdated(ws, { event, modifiedBy: meetingHost, changes: { date: Date.now() } })
+      await eventUpdated(ctx, ws, { event, modifiedBy: meetingHost, changes: { date: Date.now() } })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
@@ -153,7 +163,7 @@ describe('queue message handlers', () => {
     test('there should not be notification when host deletes event for himself', async () => {
       const event = eventFor(meetingHost)
 
-      await eventDeleted(ws, { event, modifiedBy: meetingHost })
+      await eventDeleted(ctx, ws, { event, modifiedBy: meetingHost })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
@@ -161,7 +171,7 @@ describe('queue message handlers', () => {
     test('there should not be notification when host deletes event for guest', async () => {
       const event = eventFor(meetingGuest)
 
-      await eventDeleted(ws, { event, modifiedBy: meetingHost })
+      await eventDeleted(ctx, ws, { event, modifiedBy: meetingHost })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
@@ -169,15 +179,15 @@ describe('queue message handlers', () => {
     test('there should be notification when host deletes meeting for guest', async () => {
       const event = eventFor(meetingGuest, { room })
 
-      await eventDeleted(ws, { event, modifiedBy: meetingHost })
+      await eventDeleted(ctx, ws, { event, modifiedBy: meetingHost })
 
-      expect(createNotificationSpy).toHaveBeenCalledWith(ws, MeetingNotificationType.Canceled, event, meetingHost)
+      expect(createNotificationSpy).toHaveBeenCalledWith(ctx, ws, MeetingNotificationType.Canceled, event, meetingHost)
     })
 
     test('there should not be notification when host deletes meeting for guest in the past', async () => {
       const event = eventFor(meetingGuest, { room, date: pastDate() })
 
-      await eventDeleted(ws, { event, modifiedBy: meetingHost })
+      await eventDeleted(ctx, ws, { event, modifiedBy: meetingHost })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
@@ -185,7 +195,7 @@ describe('queue message handlers', () => {
     test('there should not be notification when host deletes meeting for himself', async () => {
       const event = eventFor(meetingHost, { room })
 
-      await eventDeleted(ws, { event, modifiedBy: meetingHost })
+      await eventDeleted(ctx, ws, { event, modifiedBy: meetingHost })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
@@ -195,27 +205,27 @@ describe('queue message handlers', () => {
     test('there should not be notification when event not created before mixin', async () => {
       const event = eventFor(meetingGuest)
 
-      await eventMixin(ws, { event, modifiedBy: meetingHost, changes: { room } })
+      await eventMixin(ctx, ws, { event, modifiedBy: meetingHost, changes: { room } })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
 
     test('there should be notification when host create meeting for guest', async () => {
       const event0 = eventFor(meetingGuest)
-      await eventCreated(ws, { event: event0, modifiedBy: meetingHost })
+      await eventCreated(ctx, ws, { event: event0, modifiedBy: meetingHost })
 
       const event = eventFor(meetingGuest, { room })
-      await eventMixin(ws, { event, modifiedBy: meetingHost, changes: { room } })
+      await eventMixin(ctx, ws, { event, modifiedBy: meetingHost, changes: { room } })
 
-      expect(createNotificationSpy).toHaveBeenCalledWith(ws, MeetingNotificationType.Scheduled, event, meetingHost)
+      expect(createNotificationSpy).toHaveBeenCalledWith(ctx, ws, MeetingNotificationType.Scheduled, event, meetingHost)
     })
 
     test('there should not be notification when host created meeting for himself', async () => {
       const event0 = eventFor(meetingHost)
-      await eventCreated(ws, { event: event0, modifiedBy: meetingHost })
+      await eventCreated(ctx, ws, { event: event0, modifiedBy: meetingHost })
 
       const event = eventFor(meetingHost, { room })
-      await eventMixin(ws, { event, modifiedBy: meetingHost, changes: { room } })
+      await eventMixin(ctx, ws, { event, modifiedBy: meetingHost, changes: { room } })
 
       expect(createNotificationSpy).not.toHaveBeenCalled()
     })
diff --git a/services/calendar/pod-calendar-mailer/src/handlers.ts b/services/calendar/pod-calendar-mailer/src/handlers.ts
index ee197cdbf7..b301545955 100644
--- a/services/calendar/pod-calendar-mailer/src/handlers.ts
+++ b/services/calendar/pod-calendar-mailer/src/handlers.ts
@@ -13,7 +13,7 @@
 // limitations under the License.
 //
 import { Event } from '@hcengineering/calendar'
-import { Data, WorkspaceUuid } from '@hcengineering/core'
+import { Data, MeasureContext, WorkspaceUuid } from '@hcengineering/core'
 import { createNotification, MeetingNotificationType } from './notification'
 import { type EventCUDMessage } from './types'
 import { isMeeting } from './utils'
@@ -36,81 +36,101 @@ function addRecentEvent (eventId: string): void {
 }
 
 export async function eventCreated (
+  ctx: MeasureContext,
   workspaceUuid: WorkspaceUuid,
   message: Omit<EventCUDMessage, 'action'>
-): Promise<void> {
+): Promise<string | undefined> {
   const { event, modifiedBy } = message
 
   // TODO: move emailing logic from huly-schedule here
 
-  if (event.date <= Date.now()) return
+  if (event.date <= Date.now()) {
+    return 'Event is in the past'
+  }
+  if (modifiedBy === event.user) {
+    return 'Event modified by the user'
+  }
 
-  if (modifiedBy !== event.user) {
-    if (await isMeeting(workspaceUuid, event)) {
-      // This happens when the host adds a new participant to the existing meeting
-      // A new event which is already a meeting is created for the new participant
-      await createNotification(workspaceUuid, MeetingNotificationType.Scheduled, event, modifiedBy)
-    } else {
-      // Don't create notifications for reguar events, only for meetings
-      // But the event will be marked as a meeting in a separate call
-      // immediately after creation, in the "mixin" message
-      addRecentEvent(event._id)
-    }
+  if (await isMeeting(workspaceUuid, event)) {
+    // This happens when the host adds a new participant to the existing meeting
+    // A new event which is already a meeting is created for the new participant
+    await createNotification(ctx, workspaceUuid, MeetingNotificationType.Scheduled, event, modifiedBy)
+  } else {
+    // Don't create notifications for reguar events, only for meetings
+    // But the event will be marked as a meeting in a separate call
+    // immediately after creation, in the "mixin" message
+    addRecentEvent(event._id)
   }
 }
 
 export async function eventUpdated (
+  ctx: MeasureContext,
   workspaceUuid: WorkspaceUuid,
   message: Omit<EventCUDMessage, 'action'>
-): Promise<void> {
+): Promise<string | undefined> {
   const { event, modifiedBy } = message
 
   // TODO: if the event was created via huly-schedule, we need to send an email
 
-  if (event.date <= Date.now()) return
-
-  if (modifiedBy !== event.user) {
-    if (await isMeeting(workspaceUuid, event)) {
-      const changes = message.changes as Partial<Data<Event>>
-      if (changes.date !== undefined) {
-        await createNotification(workspaceUuid, MeetingNotificationType.Rescheduled, event, modifiedBy)
-      }
-    }
+  if (event.date <= Date.now()) {
+    return 'Event is in the past'
   }
+  if (modifiedBy === event.user) {
+    return 'Event modified by the user'
+  }
+  if (!(await isMeeting(workspaceUuid, event))) {
+    return 'Event is not a meeting'
+  }
+
+  const changes = message.changes as Partial<Data<Event>>
+  if (changes.date === undefined) {
+    return 'Event date not changed'
+  }
+
+  await createNotification(ctx, workspaceUuid, MeetingNotificationType.Rescheduled, event, modifiedBy)
 }
 
 export async function eventDeleted (
+  ctx: MeasureContext,
   workspaceUuid: WorkspaceUuid,
   message: Omit<EventCUDMessage, 'action'>
-): Promise<void> {
+): Promise<string | undefined> {
   const { event, modifiedBy } = message
 
   // TODO: if the event was created via huly-schedule, we need to send an email
 
-  if (event.date <= Date.now()) return
-
-  if (modifiedBy !== event.user) {
-    if (await isMeeting(workspaceUuid, event)) {
-      await createNotification(workspaceUuid, MeetingNotificationType.Canceled, event, modifiedBy)
-    }
+  if (event.date <= Date.now()) {
+    return 'Event is in the past'
   }
+  if (modifiedBy === event.user) {
+    return 'Event modified by the user'
+  }
+  if (!(await isMeeting(workspaceUuid, event))) {
+    return 'Event is not a meeting'
+  }
+
+  await createNotification(ctx, workspaceUuid, MeetingNotificationType.Canceled, event, modifiedBy)
 }
 
 export async function eventMixin (
+  ctx: MeasureContext,
   workspaceUuid: WorkspaceUuid,
   message: Omit<EventCUDMessage, 'action'>
-): Promise<void> {
+): Promise<string | undefined> {
   const { event, modifiedBy } = message
 
   // TODO: move emailing logic from huly-schedule here
 
-  if (modifiedBy !== event.user) {
-    if (recentlyCreatedEvents.has(event._id)) {
-      recentlyCreatedEvents.delete(event._id)
-
-      if (await isMeeting(workspaceUuid, event)) {
-        await createNotification(workspaceUuid, MeetingNotificationType.Scheduled, event, modifiedBy)
-      }
-    }
+  if (modifiedBy === event.user) {
+    return 'Event modified by the user'
   }
+  if (!recentlyCreatedEvents.has(event._id)) {
+    return 'Event not found in recent events'
+  }
+  if (!(await isMeeting(workspaceUuid, event))) {
+    return 'Event is not a meeting'
+  }
+
+  recentlyCreatedEvents.delete(event._id)
+  await createNotification(ctx, workspaceUuid, MeetingNotificationType.Scheduled, event, modifiedBy)
 }
diff --git a/services/calendar/pod-calendar-mailer/src/index.ts b/services/calendar/pod-calendar-mailer/src/index.ts
index cc32ca52ac..b1de45c166 100644
--- a/services/calendar/pod-calendar-mailer/src/index.ts
+++ b/services/calendar/pod-calendar-mailer/src/index.ts
@@ -55,23 +55,34 @@ async function main (): Promise<void> {
         const ws = message.id as WorkspaceUuid
         const records = message.value
         for (const record of records) {
+          ctx.info('Processing event', {
+            ws,
+            action: record.action,
+            eventId: record.event.eventId,
+            objectId: record.event._id,
+            modifiedBy: record.modifiedBy
+          })
           try {
+            let skipReason
             switch (record.action) {
               case 'create':
-                await eventCreated(ws, record)
+                skipReason = await eventCreated(ctx, ws, record)
                 break
               case 'update':
-                await eventUpdated(ws, record)
+                skipReason = await eventUpdated(ctx, ws, record)
                 break
               case 'delete':
-                await eventDeleted(ws, record)
+                skipReason = await eventDeleted(ctx, ws, record)
                 break
               case 'mixin':
-                await eventMixin(ws, record)
+                skipReason = await eventMixin(ctx, ws, record)
                 break
             }
+            if (skipReason !== undefined) {
+              ctx.info('Notification skipped', { reason: skipReason, objectId: record.event._id })
+            }
           } catch (error) {
-            ctx.error('Error processing message', { error, ws, record })
+            ctx.error('Error processing event', { error, ws, record })
           }
         }
       }
diff --git a/services/calendar/pod-calendar-mailer/src/notification.ts b/services/calendar/pod-calendar-mailer/src/notification.ts
index acd5914c73..1ccee00416 100644
--- a/services/calendar/pod-calendar-mailer/src/notification.ts
+++ b/services/calendar/pod-calendar-mailer/src/notification.ts
@@ -14,7 +14,7 @@
 //
 import calendar, { Event } from '@hcengineering/calendar'
 import contact from '@hcengineering/contact'
-import { AccountUuid, Doc, PersonId, Ref, Space, WorkspaceUuid } from '@hcengineering/core'
+import { AccountUuid, Doc, MeasureContext, PersonId, Ref, Space, WorkspaceUuid } from '@hcengineering/core'
 import notification from '@hcengineering/notification'
 import { IntlString } from '@hcengineering/platform'
 import { getClient } from './utils'
@@ -32,6 +32,7 @@ const notificationMessages: Record<MeetingNotificationType, IntlString> = {
 }
 
 export async function createNotification (
+  ctx: MeasureContext,
   workspaceUuid: WorkspaceUuid,
   type: MeetingNotificationType,
   forEvent: Event,
@@ -102,4 +103,11 @@ export async function createNotification (
     archived: false,
     docNotifyContext: docNotifyContextId
   })
+
+  ctx.info('Notification created', {
+    personUuid,
+    eventId: forEvent.eventId,
+    objectId: forEvent._id,
+    spaceId: space._id
+  })
 }
diff --git a/services/calendar/pod-calendar-mailer/src/utils.ts b/services/calendar/pod-calendar-mailer/src/utils.ts
index bda5f3ac28..7981084beb 100644
--- a/services/calendar/pod-calendar-mailer/src/utils.ts
+++ b/services/calendar/pod-calendar-mailer/src/utils.ts
@@ -15,7 +15,7 @@
 import { getClient as getAccountClient, AccountClient } from '@hcengineering/account-client'
 import { createRestTxOperations } from '@hcengineering/api-client'
 import { Event } from '@hcengineering/calendar'
-import { Hierarchy, PersonId, systemAccountUuid, TxOperations, WorkspaceUuid } from '@hcengineering/core'
+import core, { Hierarchy, PersonId, systemAccountUuid, TxOperations, WorkspaceUuid } from '@hcengineering/core'
 import love from '@hcengineering/love'
 import { generateToken } from '@hcengineering/server-token'
 import config from './config'
@@ -27,7 +27,7 @@ export async function getClient (
   const token = generateToken(systemAccountUuid, workspaceUuid)
   let accountClient = getAccountClient(config.accountsUrl, token)
 
-  if (socialId !== undefined) {
+  if (socialId !== undefined && socialId !== core.account.System) {
     const personUuid = await accountClient.findPersonBySocialId(socialId, true)
     if (personUuid === undefined) {
       throw new Error('Global person not found')
diff --git a/services/github/pod-github/src/platform.ts b/services/github/pod-github/src/platform.ts
index 6671bf4129..0a127318c4 100644
--- a/services/github/pod-github/src/platform.ts
+++ b/services/github/pod-github/src/platform.ts
@@ -807,7 +807,8 @@ export class PlatformWorker {
   }
 
   async getWorkspaces (): Promise<WorkspaceUuid[]> {
-    return this.integrations.map((it) => it.workspace)
+    // Since few integeration could map into one workspace, we need to deduplicate
+    return Array.from(new Set(this.integrations.map((it) => it.workspace)))
   }
 
   checkedWorkspaces = new Set<string>()