diff --git a/src/app/boot/app_controller.nim b/src/app/boot/app_controller.nim
index 04fa921c05..a3f4e25106 100644
--- a/src/app/boot/app_controller.nim
+++ b/src/app/boot/app_controller.nim
@@ -165,7 +165,6 @@ proc newAppController*(statusFoundation: StatusFoundation): AppController =
 
   # Services
   result.generalService = general_service.newService(statusFoundation.events, statusFoundation.threadpool)
-  result.activityCenterService = activity_center_service.newService(statusFoundation.events, statusFoundation.threadpool)
   result.keycardService = keycard_service.newService(statusFoundation.events, statusFoundation.threadpool)
   result.nodeConfigurationService = node_configuration_service.newService(statusFoundation.fleetConfiguration,
   result.settingsService, statusFoundation.events)
@@ -177,6 +176,7 @@ proc newAppController*(statusFoundation: StatusFoundation): AppController =
     statusFoundation.events, statusFoundation.threadpool, result.networkService, result.settingsService
   )
   result.chatService = chat_service.newService(statusFoundation.events, statusFoundation.threadpool, result.contactsService)
+  result.activityCenterService = activity_center_service.newService(statusFoundation.events, statusFoundation.threadpool, result.chatService)
   result.tokenService = token_service.newService(
     statusFoundation.events, statusFoundation.threadpool, result.networkService, result.settingsService
   )
diff --git a/src/app/modules/main/activity_center/controller.nim b/src/app/modules/main/activity_center/controller.nim
index 108a616e64..b9069aa766 100644
--- a/src/app/modules/main/activity_center/controller.nim
+++ b/src/app/modules/main/activity_center/controller.nim
@@ -76,6 +76,14 @@ proc init*(self: Controller) =
     if (evArgs.notificationIds.len > 0):
       self.delegate.removeActivityCenterNotifications(evArgs.notificationIds)
 
+  self.events.on(activity_center_service.SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_ACCEPTED) do(e: Args):
+    var evArgs = ActivityCenterNotificationIdArgs(e)
+    self.delegate.acceptActivityCenterNotificationDone(evArgs.notificationId)
+
+  self.events.on(activity_center_service.SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_DISMISSED) do(e: Args):
+    var evArgs = ActivityCenterNotificationIdArgs(e)
+    self.delegate.dismissActivityCenterNotificationDone(evArgs.notificationId)
+
 proc hasMoreToShow*(self: Controller): bool =
   return self.activityCenterService.hasMoreToShow()
 
@@ -109,6 +117,12 @@ proc markActivityCenterNotificationUnread*(self: Controller,notificationId: stri
 proc markAsSeenActivityCenterNotifications*(self: Controller) =
   self.activityCenterService.markAsSeenActivityCenterNotifications()
 
+proc acceptActivityCenterNotification*(self: Controller,notificationId: string) =
+  self.activityCenterService.acceptActivityCenterNotification(notificationId)
+
+proc dismissActivityCenterNotification*(self: Controller,notificationId: string) =
+  self.activityCenterService.dismissActivityCenterNotification(notificationId)
+
 proc replacePubKeysWithDisplayNames*(self: Controller, message: string): string =
   return self.messageService.replacePubKeysWithDisplayNames(message)
 
diff --git a/src/app/modules/main/activity_center/io_interface.nim b/src/app/modules/main/activity_center/io_interface.nim
index 513662a278..5e68251636 100644
--- a/src/app/modules/main/activity_center/io_interface.nim
+++ b/src/app/modules/main/activity_center/io_interface.nim
@@ -63,6 +63,18 @@ method markActivityCenterNotificationUnread*(self: AccessInterface, notification
 method markAsSeenActivityCenterNotifications*(self: AccessInterface) {.base.} =
   raise newException(ValueError, "No implementation available")
 
+method acceptActivityCenterNotification*(self: AccessInterface, notificationId: string) {.base.} =
+  raise newException(ValueError, "No implementation available")
+
+method dismissActivityCenterNotification*(self: AccessInterface, notificationId: string) {.base.} =
+  raise newException(ValueError, "No implementation available")
+
+method acceptActivityCenterNotificationDone*(self: AccessInterface, notificationId: string) {.base.} =
+  raise newException(ValueError, "No implementation available")
+
+method dismissActivityCenterNotificationDone*(self: AccessInterface, notificationId: string) {.base.} =
+  raise newException(ValueError, "No implementation available")
+
 method addActivityCenterNotifications*(self: AccessInterface, activityCenterNotifications: seq[ActivityCenterNotificationDto]) {.base.} =
   raise newException(ValueError, "No implementation available")
 
diff --git a/src/app/modules/main/activity_center/item.nim b/src/app/modules/main/activity_center/item.nim
index cd5b476305..6c99de1951 100644
--- a/src/app/modules/main/activity_center/item.nim
+++ b/src/app/modules/main/activity_center/item.nim
@@ -126,9 +126,15 @@ proc `read=`*(self: Item, value: bool) =
 proc dismissed*(self: Item): bool =
   return self.dismissed
 
+proc `dismissed=`*(self: Item, value: bool) =
+  self.dismissed = value
+
 proc accepted*(self: Item): bool =
   return self.accepted
 
+proc `accepted=`*(self: Item, value: bool) =
+  self.accepted = value
+
 proc messageItem*(self: Item): MessageItem =
   return self.messageItem
 
diff --git a/src/app/modules/main/activity_center/model.nim b/src/app/modules/main/activity_center/model.nim
index c6ce6c99f7..d0bfb8734a 100644
--- a/src/app/modules/main/activity_center/model.nim
+++ b/src/app/modules/main/activity_center/model.nim
@@ -112,27 +112,55 @@ QtObject:
       NotifRoles.TokenData.int: "tokenData"
     }.toTable
 
+  proc findNotificationIndex(self: Model, notificationId: string): int =
+    if notificationId.len == 0:
+      return -1
+    for i in 0 ..< self.activityCenterNotifications.len:
+      if self.activityCenterNotifications[i].id == notificationId:
+        return i
+    return -1
+
   proc markActivityCenterNotificationUnread*(self: Model, notificationId: string) =
-    var i = 0
-    for acnViewItem in self.activityCenterNotifications:
-      if (acnViewItem.id == notificationId):
-        acnViewItem.read = false
-        let index = self.createIndex(i, 0, nil)
-        defer: index.delete
-        self.dataChanged(index, index, @[NotifRoles.Read.int])
-        break
-      i.inc
+    let i = self.findNotificationIndex(notificationId)
+    if i == -1:
+      return
+
+    self.activityCenterNotifications[i].read = false
+    let index = self.createIndex(i, 0, nil)
+    defer: index.delete
+    self.dataChanged(index, index, @[NotifRoles.Read.int])
 
   proc markActivityCenterNotificationRead*(self: Model, notificationId: string) =
-    var i = 0
-    for acnViewItem in self.activityCenterNotifications:
-      if (acnViewItem.id == notificationId):
-        acnViewItem.read = true
-        let index = self.createIndex(i, 0, nil)
-        defer: index.delete
-        self.dataChanged(index, index, @[NotifRoles.Read.int])
-        break
-      i.inc
+    let i = self.findNotificationIndex(notificationId)
+    if i == -1:
+      return
+
+    self.activityCenterNotifications[i].read = true
+    let index = self.createIndex(i, 0, nil)
+    defer: index.delete
+    self.dataChanged(index, index, @[NotifRoles.Read.int])
+
+  proc activityCenterNotificationAccepted*(self: Model, notificationId: string) =
+    let i = self.findNotificationIndex(notificationId)
+    if i == -1:
+      return
+
+    self.activityCenterNotifications[i].read = true
+    self.activityCenterNotifications[i].accepted = true
+    let index = self.createIndex(i, 0, nil)
+    defer: index.delete
+    self.dataChanged(index, index, @[NotifRoles.Accepted.int, NotifRoles.Read.int])
+
+  proc activityCenterNotificationDismissed*(self: Model, notificationId: string) =
+    let i = self.findNotificationIndex(notificationId)
+    if i == -1:
+      return
+
+    self.activityCenterNotifications[i].read = true
+    self.activityCenterNotifications[i].dismissed = true
+    let index = self.createIndex(i, 0, nil)
+    defer: index.delete
+    self.dataChanged(index, index, @[NotifRoles.Dismissed.int, NotifRoles.Read.int])
 
   proc removeNotifications*(self: Model, ids: seq[string]) =
     var i = 0
diff --git a/src/app/modules/main/activity_center/module.nim b/src/app/modules/main/activity_center/module.nim
index 0f758b8912..c4b861a283 100644
--- a/src/app/modules/main/activity_center/module.nim
+++ b/src/app/modules/main/activity_center/module.nim
@@ -244,6 +244,18 @@ method resetActivityCenterNotifications*(self: Module, activityCenterNotificatio
 method markActivityCenterNotificationUnread*(self: Module, notificationId: string) =
   self.controller.markActivityCenterNotificationUnread(notificationId)
 
+method acceptActivityCenterNotification*(self: Module, notificationId: string) =
+  self.controller.acceptActivityCenterNotification(notificationId)
+
+method dismissActivityCenterNotification*(self: Module, notificationId: string) =
+  self.controller.dismissActivityCenterNotification(notificationId)
+
+method acceptActivityCenterNotificationDone*(self: Module, notificationId: string) =
+  self.view.acceptActivityCenterNotificationDone(notificationId)
+
+method dismissActivityCenterNotificationDone*(self: Module, notificationId: string) =
+  self.view.dismissActivityCenterNotificationDone(notificationId)
+
 method markActivityCenterNotificationUnreadDone*(self: Module, notificationIds: seq[string]) =
   for notificationId in notificationIds:
     self.view.markActivityCenterNotificationUnreadDone(notificationId)
diff --git a/src/app/modules/main/activity_center/view.nim b/src/app/modules/main/activity_center/view.nim
index a1adc14e56..3b0efa995b 100644
--- a/src/app/modules/main/activity_center/view.nim
+++ b/src/app/modules/main/activity_center/view.nim
@@ -90,6 +90,18 @@ QtObject:
     self.delegate.markAsSeenActivityCenterNotifications()
     self.hasUnseenActivityCenterNotificationsChanged()
 
+  proc acceptActivityCenterNotification(self: View, notificationId: string): void {.slot.} =
+    self.delegate.acceptActivityCenterNotification(notificationId)
+
+  proc dismissActivityCenterNotification(self: View, notificationId: string): void {.slot.} =
+    self.delegate.dismissActivityCenterNotification(notificationId)
+
+  proc acceptActivityCenterNotificationDone*(self: View, notificationId: string) =
+    self.model.activityCenterNotificationAccepted(notificationId)
+
+  proc dismissActivityCenterNotificationDone*(self: View, notificationId: string) =
+    self.model.activityCenterNotificationDismissed(notificationId)
+
   proc addActivityCenterNotifications*(self: View, activityCenterNotifications: seq[Item]) =
     self.model.upsertActivityCenterNotifications(activityCenterNotifications)
 
diff --git a/src/app_service/service/activity_center/dto/notification.nim b/src/app_service/service/activity_center/dto/notification.nim
index 169cb193fe..456da36032 100644
--- a/src/app_service/service/activity_center/dto/notification.nim
+++ b/src/app_service/service/activity_center/dto/notification.nim
@@ -100,6 +100,7 @@ proc toActivityCenterNotificationDto*(jsonObj: JsonNode): ActivityCenterNotifica
   discard jsonObj.getProp("id", result.id)
   discard jsonObj.getProp("chatId", result.chatId)
   discard jsonObj.getProp("communityId", result.communityId)
+  discard jsonObj.getProp("name", result.name)
 
   result.membershipStatus = ActivityCenterMembershipStatus.Idle
   var membershipStatusInt: int
diff --git a/src/app_service/service/activity_center/service.nim b/src/app_service/service/activity_center/service.nim
index 308aadbec5..14ed6afe19 100644
--- a/src/app_service/service/activity_center/service.nim
+++ b/src/app_service/service/activity_center/service.nim
@@ -13,6 +13,7 @@ import ./dto/notification
 import ../../common/activity_center
 import ../message/service
 import ../message/dto/seen_unseen_messages
+import ../chat/service as chat_service
 
 export notification
 
@@ -28,6 +29,9 @@ type
   ActivityCenterNotificationIdsArgs* = ref object of Args
     notificationIds*: seq[string]
 
+  ActivityCenterNotificationIdArgs* = ref object of Args
+    notificationId*: string
+
 # Signals which may be emitted by this service:
 const SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_LOADED* = "activityCenterNotificationsLoaded"
 const SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_COUNT_MAY_HAVE_CHANGED* = "activityCenterNotificationsCountMayChanged"
@@ -35,6 +39,8 @@ const SIGNAL_ACTIVITY_CENTER_MARK_NOTIFICATIONS_AS_READ* = "activityCenterMarkNo
 const SIGNAL_ACTIVITY_CENTER_MARK_NOTIFICATIONS_AS_UNREAD* = "activityCenterMarkNotificationsAsUnread"
 const SIGNAL_ACTIVITY_CENTER_MARK_ALL_NOTIFICATIONS_AS_READ* = "activityCenterMarkAllNotificationsAsRead"
 const SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_REMOVED* = "activityCenterNotificationsRemoved"
+const SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_ACCEPTED* = "activityCenterNotificationsAccepted"
+const SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_DISMISSED* = "activityCenterNotificationsDismissed"
 
 const DEFAULT_LIMIT = 20
 
@@ -55,6 +61,7 @@ QtObject:
     cursor*: string
     activeGroup: ActivityCenterGroup
     readType: ActivityCenterReadType
+    chatService: chat_service.Service
 
   # Forward declaration
   proc asyncActivityNotificationLoad*(self: Service)
@@ -64,7 +71,8 @@ QtObject:
 
   proc newService*(
       events: EventEmitter,
-      threadpool: ThreadPool
+      threadpool: ThreadPool,
+      chatService: chat_service.Service,
       ): Service =
     new(result, delete)
     result.QObject.setup
@@ -73,6 +81,7 @@ QtObject:
     result.cursor = ""
     result.activeGroup = ActivityCenterGroup.All
     result.readType = ActivityCenterReadType.All
+    result.chatService = chatService
 
   proc handleNewNotificationsLoaded(self: Service, activityCenterNotifications: seq[ActivityCenterNotificationDto]) =
     # For now status-go notify about every notification update regardless active group so we need filter manulay on the desktop side
@@ -151,6 +160,7 @@ QtObject:
           readType: self.readType.int
         )
       )
+
       let activityCenterNotificationsTuple = parseActivityCenterNotifications(response.result)
 
       self.cursor = activityCenterNotificationsTuple[0];
@@ -231,7 +241,10 @@ QtObject:
   proc markActivityCenterNotificationUnread*(self: Service, notificationId: string) =
     try:
       let notificationIds = @[notificationId]
-      discard backend.markActivityCenterNotificationsUnread(notificationIds)
+      let response =  backend.markActivityCenterNotificationsUnread(notificationIds)
+      if response.error != nil:
+        raise newException(RpcException, response.error.message)
+
       self.events.emit(SIGNAL_ACTIVITY_CENTER_MARK_NOTIFICATIONS_AS_UNREAD, ActivityCenterNotificationIdsArgs(notificationIds: notificationIds))
     except Exception as e:
       error "Error marking as unread", msg = e.msg
@@ -273,7 +286,10 @@ QtObject:
 
   proc deleteActivityCenterNotifications*(self: Service, notificationIds: seq[string]): string =
     try:
-      discard backend.deleteActivityCenterNotifications(notificationIds)
+      let response = backend.deleteActivityCenterNotifications(notificationIds)
+      if response.error != nil:
+        raise newException(RpcException, response.error.message)
+
       self.events.emit(SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_REMOVED, ActivityCenterNotificationIdsArgs(notificationIds: notificationIds))
       self.events.emit(SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_COUNT_MAY_HAVE_CHANGED, Args())
     except Exception as e:
@@ -285,3 +301,34 @@ QtObject:
     for acNotification in acNotifications:
       if acNotification.notificationType == notificationType and acNotification.communityId == communityId:
         return acNotification
+
+  proc acceptActivityCenterNotification*(self: Service, notificationId: string) =
+    try:
+      let notificationIds = @[notificationId]
+      let response = backend.acceptActivityCenterNotifications(notificationIds)
+      if response.error != nil:
+        raise newException(RpcException, response.error.message)
+
+      if response.result.kind != JNull:
+        if response.result.contains("chats"):
+          for jsonChat in response.result["chats"]:
+            let chat = toChatDto(jsonChat)
+            self.chatService.updateOrAddChat(chat)
+            self.events.emit(SIGNAL_CHAT_UPDATE, ChatUpdateArgs(chats: @[chat]))
+
+      self.events.emit(SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_ACCEPTED, ActivityCenterNotificationIdArgs(notificationId: notificationId))
+      self.events.emit(SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_COUNT_MAY_HAVE_CHANGED, Args())
+    except Exception as e:
+      error "Error accepting activity center notification", msg = e.msg
+
+  proc dismissActivityCenterNotification*(self: Service, notificationId: string) =
+    try:
+      let notificationIds = @[notificationId]
+      let response = backend.dismissActivityCenterNotifications(notificationIds)
+      if response.error != nil:
+        raise newException(RpcException, response.error.message)
+
+      self.events.emit(SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_DISMISSED, ActivityCenterNotificationIdArgs(notificationId: notificationId))
+      self.events.emit(SIGNAL_ACTIVITY_CENTER_NOTIFICATIONS_COUNT_MAY_HAVE_CHANGED, Args())
+    except Exception as e:
+      error "Error dismissing activity center notification", msg = e.msg
\ No newline at end of file
diff --git a/ui/app/mainui/activitycenter/popups/ActivityCenterPopup.qml b/ui/app/mainui/activitycenter/popups/ActivityCenterPopup.qml
index 5b6dcda2d3..99f91ff9df 100644
--- a/ui/app/mainui/activitycenter/popups/ActivityCenterPopup.qml
+++ b/ui/app/mainui/activitycenter/popups/ActivityCenterPopup.qml
@@ -144,6 +144,8 @@ Popup {
                     return communityBannedNotificationComponent
                 case ActivityCenterStore.ActivityCenterNotificationType.CommunityUnbanned:
                     return communityUnbannedNotificationComponent
+                case ActivityCenterStore.ActivityCenterNotificationType.NewPrivateGroupChat:
+                    return groupChatInvitationNotificationComponent
                 default:
                     return null
                 }
@@ -352,4 +354,16 @@ Popup {
             }
         }
     }
+
+    Component {
+        id: groupChatInvitationNotificationComponent
+
+        ActivityNotificationUnknownGroupChatInvitation {
+            filteredIndex: parent.filteredIndex
+            notification: parent.notification
+            store: root.store
+            activityCenterStore: root.activityCenterStore
+            onCloseActivityCenter: root.close()
+        }
+    }
 }
diff --git a/ui/app/mainui/activitycenter/stores/ActivityCenterStore.qml b/ui/app/mainui/activitycenter/stores/ActivityCenterStore.qml
index a913c2d12b..4173272f8e 100644
--- a/ui/app/mainui/activitycenter/stores/ActivityCenterStore.qml
+++ b/ui/app/mainui/activitycenter/stores/ActivityCenterStore.qml
@@ -110,4 +110,12 @@ QtObject {
     function fetchActivityCenterNotifications() {
         root.activityCenterModuleInst.fetchActivityCenterNotifications()
     }
+
+    function acceptActivityCenterNotification(notification) {
+        root.activityCenterModuleInst.acceptActivityCenterNotification(notification.id)
+    }
+
+    function dismissActivityCenterNotification(notification) {
+        root.activityCenterModuleInst.dismissActivityCenterNotification(notification.id)
+    }
 }
diff --git a/ui/app/mainui/activitycenter/views/ActivityNotificationUnknownGroupChatInvitation.qml b/ui/app/mainui/activitycenter/views/ActivityNotificationUnknownGroupChatInvitation.qml
new file mode 100644
index 0000000000..a953c26f99
--- /dev/null
+++ b/ui/app/mainui/activitycenter/views/ActivityNotificationUnknownGroupChatInvitation.qml
@@ -0,0 +1,43 @@
+import QtQuick 2.14
+import QtQuick.Layouts 1.14
+
+import StatusQ.Core 0.1
+import StatusQ.Core.Theme 0.1
+import StatusQ.Components 0.1
+
+import shared 1.0
+import shared.panels 1.0
+import utils 1.0
+
+import "../controls"
+import "../panels"
+import "../stores"
+
+ActivityNotificationMessage {
+    id: root
+
+    messageDetails.messageText: qsTr("Invitation to an unknown group")
+
+    badgeComponent: ChannelBadge {
+        property var group: root.store.getChatDetails(notification.chatId)
+
+        chatType: notification.chatType
+        name: notification.name
+        asset.isImage: asset.name != ""
+        asset.name: group.icon
+        asset.emoji: group.emoji
+        asset.color: group.color
+    }
+
+    ctaComponent: MembershipCta {
+        membershipStatus: if (notification.accepted)
+                              return ActivityCenterStore.ActivityCenterMembershipStatus.Accepted
+                          else if (notification.dismissed)
+                              return ActivityCenterStore.ActivityCenterMembershipStatus.Declined
+                          else
+                              return ActivityCenterStore.ActivityCenterMembershipStatus.Pending
+
+        onAcceptRequestToJoinCommunity: activityCenterStore.acceptActivityCenterNotification(notification)
+        onDeclineRequestToJoinCommunity: activityCenterStore.dismissActivityCenterNotification(notification)
+    }
+}