Starter Deal! First 3 month from only  $9.9 /month!
Starter Deal! First 3 month from only  $9.9 /month!
Grab It Now 
Chat
  • Web
    • TUIKit
      • Overview
      • Installaton
        • TUIKit
          • Vue
          • React
        • TUIChat Only
          • Vue
      • Features
        • Reactions
        • Read Receipt
        • Typing Status
        • User Online Status
      • Themes
        • Setting UI Styles
          • Web
          • Mobile
      • Customization
        • Customize Messages
      • Localization
    • SDK
      • Install Chat SDK
      • Initialize Chat SDK
      • Login and Logout
      • Client APIs
      • Message
        • Overview
        • Send a Message
        • Receive a Message
        • Historical Message
        • Forward Messages
        • Modify a Message
        • Delete Messages
        • Clear History Message
        • Recall a Message
        • Send an Online Message
        • Message Read Receipt
        • Query Messages
        • Targeted Group Message
        • Do not Notify
        • Key-Value Extensions
        • Translation
      • Conversation
        • Overview
        • Conversation List
        • Get Conversations
        • Unread Count
        • Pin Conversations
        • Delete Conversations
        • Mark
        • Conversation Group
      • Group
        • Overview
        • Group Management
        • Group Profile
        • Group Member Management
        • Group Member Profile
        • Custom Group Attribute
        • Group Counter
      • Community Topic
        • Community Management
      • User Profile and Relationship Chain
        • User Profile
        • User Status
        • Friend Management
        • Friend List
        • Block List
  • Android
    • Run Demo
    • UIKit
      • Overview
      • Getting Started
      • Installation
        • TUIKit
        • TUIChat Only
      • Features
        • Reactions
        • Read Receipt
        • User Online Status
        • Search Messages
      • Customization
        • Customize Messages
        • Customize Emojis and Stickers
      • Localization
    • SDK
      • Install Chat SDK
      • Initialize Chat SDK
      • Login and Logout
      • Message
        • Overview
        • Send a Message
        • Receive a Message
        • Retrieve Messages
        • Forward Messages
        • Modify a Message
        • Insert a Message
        • Delete Messages
        • Clear History Messages
        • Recall a Message
        • Send an Online Message
        • Message Read Receipt
        • Query Messages
        • Metions
        • Targeted Group Message
        • Do not Notify
        • Key-Value Extensions
        • Reactions
        • Translation
        • Pin Messages
      • Conversation
        • Overview
        • Conversation List
        • Get Conversations
        • Unread Count
        • Pin Conversations
        • Delete Conversations
        • Draft
        • Mark
        • Conversation Group
      • Group
        • Overview
        • Manage Group
        • Profile
        • Manage Members
        • Member Profile
        • Attribute
        • Counter
      • Community and Topic
        • Manage Community
        • Permission Group
      • User
        • User Profile
        • User Status
        • Manage Friends
        • Friend Group
        • Block Lists
      • Local Search
        • Search Messages
        • Search Friends
        • Search Groups
        • Search Group Members
      • Signaling
      • API Reference
        • Java
  • iOS and macOS
    • Run Demo
    • UIKit
      • Overview
      • Getting Started
      • Installation
        • TUIKit
        • TUIChat Only
      • Features
        • Reactions
        • Read Receipt
        • User Online Status
        • Search Messages
      • Customization
        • Customize Messages
        • Customize Emojis and Stickers
      • Localization
    • SDK
      • Installation
        • iOS
        • macOS
      • Initialize Chat SDK
      • Login and Logout
      • Message
        • Overview
        • Send a Message
        • Receive a Message
        • Retrieve Messages
        • Forward Messages
        • Modify a Message
        • Insert a Message
        • Delete Messages
        • Clear History Messages
        • Recall a Message
        • Send an Online Message
        • Message Read Receipt
        • Query Messages
        • Metions
        • Targeted Group Messages
        • Do not Notify
        • Key-Value Extensions
        • Reactions
        • Translation
        • Pin Messages
      • Conversation
        • Overview
        • Conversation List
        • Get Conversations
        • Unread Count
        • Pin Conversations
        • Delete Conversations
        • Draft
        • Mark
        • Conversation Group
      • Group
        • Overview
        • Manage Group
        • Profile
        • Manage Members
        • Member Profile
        • Attribute
        • Counter
      • Community and Topic
        • Manage Community
        • Permission Group
      • User
        • User Profile
        • User Status
        • Manage Friends
        • Friend Group
        • Block Lists
      • Local Search
        • Search Messages
        • Search Friends
        • Search Groups
        • Search Group Members
      • Signaling
      • API Reference
        • Swift
        • Objective-C
  • Windows
    • SDK
      • Install Chat SDK
      • Initialize Chat SDK
      • Login and Logout
      • Message
        • Overview
        • Send a Message
        • Receive a Message
        • Retrieve Messages
        • Forward Messages
        • Modify a Message
        • Insert a Message
        • Delete Messages
        • Clear History Messages
        • Recall a Message
        • Send an Online Message
        • Message Read Receipt
        • Query Messages
        • Metions
        • Targeted Group Messages
        • Do not Notify
        • Key-Value Extensions
        • Reactions
        • Translation
        • Pin Messages
      • Conversation
        • Overview
        • Conversation List
        • Get Conversations
        • Unread Count
        • Pin Conversations
        • Delete Conversations
        • Draft
        • Mark
        • Conversation Group
      • Group
        • Overview
        • Manage Group
        • Profile
        • Manage Members
        • Member Profile
        • Attribute
        • Counter
      • Community and Topic
        • Manage Community
        • Permission Group
      • User
        • User Profile
        • User Status
        • Manage Friends
        • Friend Group
        • Block Lists
      • Local Search
        • Search Messages
        • Search Friends
        • Search Groups
        • Search Group Members
      • Signaling
      • API Reference
        • C++
        • C
  • Flutter
    • Run Demo
    • UIKIT
      • Overview
      • Installation
        • integrated
      • Features
        • Local Search
        • Offline Push
        • Online Status
        • Typing Status
        • Message Read Receipt
        • Message Reactions
        • Internationalization
        • Adding Custom Messages
        • Emoji & Stickers
      • Customization
        • Modifying UI Themes
        • Setting UI Styles
    • SDK
      • Install Chat SDK
        • Install
      • Initialize Chat SDK
        • Initialize
      • Login And Logout
        • Login and Logout
      • Message
        • Message Overview
        • Sending Message
        • Receiving Message
        • Historical Message
        • Forwarding Message
        • Modifying Message
        • Message Inserting
        • Deleting Message
        • Clearing Messages
        • Recalling Message
        • Online Message
        • Read Receipt
        • Querying Message
        • Group @ Message
        • Targeted Group Message
        • Notification Muting
        • Message Extension
      • Conversation
        • Conversation Overview
        • Conversation List
        • Getting Conversation
        • Conversation Unread Count
        • Pinning Conversation to the Top
        • Deleting Conversation
        • Conversation Draft
        • Conversation Group
      • Group
        • Group Overview
        • Group Management
        • Group Profile
        • Group Member Management
        • Group Member Profile
        • Custom Group Attribute
      • User
        • User Profile
        • Friend Management
        • Friend List
        • Blocklist
      • Offline Push
        • Offline Push
      • Signaling
        • Signaling Management
      • Local Search
        • Searching for Message
        • Searching for Friend
        • Searching Group
        • Searching for Group Member
      • API Reference
        • Client APIs
  • React Native
    • Run Demo
    • SDK
      • SDK Integration
      • Initialization
      • Login and Logout
      • Message
        • Message Overview
        • Sending Message
        • Receiving Message
        • Historical Message
        • Forwarding Message
        • Modifying Message
        • Message Inserting
        • Deleting Message
        • Clearing Messages
        • Recalling Message
        • Online Message
        • Read Receipt
        • Querying Message
        • Group @ Message
        • Targeted Group Message
        • Notification Muting
        • Message Extension
      • Group
        • Overview
        • Group Management
        • Group Profile
        • Group Member Management
        • Group Member Profile
        • Custom Group Attribute
        • Community Management
      • User
        • User Profile
        • Friend Management
        • Friend List
        • Blocklist
      • Offline Push
        • Offline Push
      • Local Search
        • Searching for Message
        • Searching for Friend
        • Searching Group
        • Searching for Group Member
      • Signaling
        • Signaling Management
  • Unity(Game Solution)
    • Run Demo
    • SDK
      • SDK Integration
      • Initialization
      • Login and Logout
      • Message
        • Message Overview
        • Sending Message
        • Receiving Message
        • Historical Message
        • Forwarding Message
        • Modifying Message
        • Deleting Message
        • Clearing Messages
        • Recalling Message
        • Online Message
        • Read Receipt
        • Querying Message
        • Group @ Message
        • Targeted Group Message
        • Notification Muting
        • Message Extension
      • Conversation
        • Conversation Overview
        • Conversation List
        • Getting Conversation
        • Conversation Unread Count
        • Pinning Conversation to the Top
        • Deleting Conversation
        • Conversation Draft
        • Conversation Mark
        • Conversation Group
      • Group
        • Group Overview
        • Group Management
        • Group Profile
        • Group Member Management
        • Group Member Profile
        • Custom Group Attribute
        • Group Counter
      • User
        • User Profile
        • User Status
        • Friend Management
        • Friend List
        • Blocklist
  • Unreal Engine(Game Solution)
    • SDK
      • SDK Integration
  • Free Demos
  • Server APIs
    • Generating UserSig
    • RESTful APIs
      • RESTful API Overview
      • RESTful API List
      • Message Related
        • Send Message
          • Sending One-to-One Messages to One User
          • Sending One-to-One Messages to Multiple Users
          • Sending Ordinary Messages in a Group
          • Sending System Messages in a Group
          • Broadcast Message of Audio-Video Group
          • Importing One-to-One Messages
          • Importing Group Messages
        • Historical Message
          • Modifying Historical One-to-one Messages
          • Modifying Historical Group Messages
          • Pulling Historical One-to-one Messages
          • Pulling Historical Group Messages
        • Delete Message
          • Deleting Messages Sent by a Specified User
        • Withdraw Message
          • Recalling One-to-One Messages
          • Recalling Group Messages
        • Read Receipt
          • Marking One-to-One Messages as Read
          • Pulling Group Message Read Receipt Details
          • Pulling Read Receipts for Group Messages
        • Message Extension
          • Pulling the Message Extension of a One-to-One Message
          • Configuring Message Extension for a One-to-One Message
          • Pulling Message Extension of a Group Message
          • Configuring Message Extension for a Group Message
        • Pushing to All Users
          • API for Pushing to All Users
          • Pushing to All Users
          • Setting Application Attribute Names
          • Getting Application Attribute Names
          • Getting User Attributes
          • Setting User Attributes
          • Deleting User Attributes
          • Getting User Tags
          • Adding User Tags
          • Deleting User Tags
          • Deleting All Tags of a User
      • Session Related
        • Conversation List
          • Pulling a conversation list
        • Session Unread Count
          • Setting the Unread Message Count of a Member
          • Querying Unread One-to-One Message Count
        • Delete Session
          • Deleting a conversation
        • Session Grouping Tag
          • Creating Conversation Group Data
          • Updating Conversation Group Data
          • Deleting Conversation Group Data
          • Creating or Updating Conversation Mark Data
          • Searching for Conversation Group Marks
          • Pulling Conversation Group Mark Data
      • Group Related
        • Group Management
          • Getting All Groups in an App
          • Creating a Group
          • Disbanding a Group
          • Getting the Groups a User Has Joined
        • Group Information
          • Getting Group Profiles
          • Modifying the Profile of a Group
          • Importing a Group Profile
        • Group Member Management
          • Adding Group Members
          • Deleting Group Members
          • Banning Group Members
          • Unbanning Group Members
          • Bulk Muting and Unmuting
          • Getting the List of Muted Group Members
          • Changing Group Owner
          • Querying the Roles of Users in a Group
          • Importing Group Members
        • Group Member Information
          • Getting Group Member Profiles
          • Modifying the Profile of a Group Member
        • Group Custom Attributes
          • Getting Group Custom Attributes
          • Modifying Group Custom Attributes
          • Clearing Group Custom Attributes
          • Resetting Group Custom Attributes
          • Deleting Group Custom Attributes
        • Live Group Management
          • Getting the Number of Online Users in an Audio-Video Group
          • Getting the List of Online Members in Audio-Video Group
          • Setting Audio-Video Group Member Marks
          • Getting the List of Banned Group Members.
        • Community Management
          • Creating Topic
          • Deleting Topic
          • Getting Topic Profile
          • Modifying Topic Profile
          • Importing Topic Profiles
        • Group Counter
          • Getting Group Counters
          • Updating Group Counters
          • Deleting Group Counters
      • User Management
        • Account Management
          • Importing a Single Account
          • Importing Multiple Accounts
          • Deleting Accounts
          • Querying Accounts
        • User Information
          • Setting Profiles
          • Pulling Profiles
        • User Status
          • Invalidating Account Login States
          • Querying Account Online Status
        • Friend Management
          • Adding Friends
          • Importing Friends
          • Updating Friends
          • Deleting Friends
          • Deleting All Friends
          • Verifying Friends
          • Pulling Friends
          • Pulling Specified Friends
        • Friend Lists
          • Adding Lists
          • Deleting Lists
          • Pulling Lists
        • Blocklist
          • Blocklisting Users
          • Unblocklisting Users
          • Pulling a Blacklist
          • Verifying Users on a Blocklist
      • Global Mute Management
        • Setting Global Mute
        • Querying Global Mute
      • Operations Management
        • Pulling Operations Data
        • Downloading Recent Messages
        • Getting Server IP Addresses
      • Chatbots
        • Pulling Chatbot Accounts
        • Creating Chatbot Accounts
        • Deleting Chatbot Accounts
    • Webhooks
      • Webhook Overview
      • Webhook Command List
      • Operations Management Callbacks
        • API Overclocking Alarm Callbacks
      • Online Status Webhooks
        • Status Change Webhooks
      • Relationship Chain Webhooks
        • After a Profile Is Updated
        • Before a Friend Is Added
        • Before a Friend Request Is Responded
        • After a Friend Is Added
        • After a Friend Is Deleted
        • After a User Is Added to Blocklist
        • After a User Is Removed from Blocklist
      • One-to-One Message Webhooks
        • Before a One-to-One Message Is Sent
        • After a One-to-One Message Is Sent
        • After a One-to-One message Is Marked as Read
        • After A One-to-One Message Is Recalled
      • Group Webhooks
        • Before a Group Is Created
        • After a Group Is Created
        • Before Applying to Join a Group
        • Before Inviting a User to a Group
        • After a User Joins a Group
        • After a User Leaves a Group
        • Before Group Message Is Sent
        • After a Group Message Is Sent
        • After a Group Is Full
        • After a Group Is Disbanded
        • After Group Profile Is Modified
        • Callback After Recalling Group Messages
        • Webhook for Online and Offline Status of Audio-Video Group Members
        • Webhook for Exceptions When Group Messages Are Sent
        • Before a Topic Is Created
        • After a Topic Is Created
        • After a Topic Is Deleted
        • Topic Profile Change Webhook
        • Callback After Group Member Profile Changed
        • Callback After Group Attribute Changed
        • Callback After Read Receipt
        • Callback After the Group Owner Changed
      • Webhook Mutual Authentication Configuration Guide
        • Apache Mutual Authentication Configuration
        • Nginx Mutual Authentication Configuration
      • Chatbot webhooks
        • Chatbot Passthrough Message Callback
  • Console Guide
    • Creating and Upgrading an Application
    • Basic Configuration
    • Feature Configuration
    • Account Management
    • Group Management
    • Webhook Configuration
  • Product Introduction
    • Message Management
      • One-to-One Message
      • Message Storage
      • Offline Push
      • Group Message
      • Message Formats
    • Account System
      • Login Authentication
      • Online Status Management
    • Group Related
      • Group System
      • Group Management
    • User Profile and Relationship Chain
      • Profile Management
      • Relationship Chain Management
  • Purchase Guide
    • Billing Overview
    • Pricing
  • Error Codes
Chat

Offline Push

Application Scenarios

You can use the offline push feature to allow users to receive new messages even when the app is running in the background or the process has been killed. iOS devices use APNs for offline push, while Android devices need you to register for offline message callbacks.

iOS APNs Push Notifications

Push notification format


The figure shows the examples of a one-to-one chat message and group chat message. For more information about iOS APNs push formats, see Push Format.

Basic APIs

The following APIs must be called to support APNs. For more information, see iOS APNs Event Reporting:
Set the token.
Switch to the background and report unread messages.
Switch to the foreground and push notifications.

Setting the Ext extension field

In some cases, an app needs to set the Ext extension field for offline push based on specific circumstances to facilitate user operations such as redirect clicks. You can input it into the Ext field in TIMCustomElem, and during push, the IM backend will input the field into Ext. For more information, see Customizing Offline Message Attributes to customize the extension field.

Setting push alert sounds

In some cases, an app needs to set the push alert sound of a single message to alert users. You can input the sound into the sound field in TIMCustomElem, and during push, the IM backend will input the field into Ext. For more information, see Setting Custom Push Alert Sounds.

Android Offline Push

Android 1.8.0 and later versions support separating services from processes. When the app process is killed, the service survives and continues to receive offline notifications. For more information, see Android Offline Push.

Sending Messages from the Backend

For iOS, you can refer to Push Format to set the display format of APNs push messages; for Android, you can refer to OfflinePushInfo to set the display format.

References