- News and Announcements
- Product Introduction
- Purchase Guide
- Development Guidelines
- Demo Zone
- Download
- Chat Interaction (UI Included)
- TUIKit Library
- Getting Started
- Integrating TUIKit
- Only integrate chat
- Build Basic Interfaces
- Modifying UI Themes
- Setting UI Styles
- Implementing Local Search
- Integrating Offline Push
- User Online Status
- Typing Status
- Message Read Receipt
- Message Reactions
- Message Quotation
- Internationalization
- Adding Custom Messages
- Emoji & Stickers
- Custom UI components
- Video Call (UI Included)
- Overview (TUICallKit)
- Activate Service（TUICallKit）
- Integration(TUICallKit)
- UI Customization (TUICallKit)
- Additional Features(TUICallKit)
- API Documentation(TUICallKit)
- Release Notes (TUICallKit)
- Push Feature
- Desk
- More Practices
- No UI Integration
- 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
- Message Reaction
- Message Translation
- Voice-to-Text
- Message Pinning
- Conversation
- Group
- Community Topic
- User Profile and Relationship Chain
- Offline Push
- Local Search
- Signaling
- Client APIs
- Server APIs
- Generating UserSig
- RESTful APIs
- RESTful API Overview
- RESTful API List
- Message Related
- Session Related
- Group Related
- Group Management
- Group Information
- Group Member Management
- Group Member Information
- Group Custom Attributes
- Live Group Management
- Setting Live Streaming Group Robots
- Deleting Live Streaming Group Robots
- Setting/Deleting Live Streaming Group Administrators
- Obtaining the List of Live Streaming Group Administrators
- Checking Whether Users Are in a Live Streaming Group
- 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
- Permission Group Management
- Creating Permission Groups
- Terminating Permission Groups
- Modifying Permission Group Information
- Obtaining Permission Group Information
- Adding Topic Permissions
- Modifying Topic Permissions
- Deleting Topic Permissions
- Obtaining Topic Permissions
- Adding Members to a Permission Group
- Deleting Permission Group Members
- Obtaining Permission Group Member List
- Group Counter
- User Management
- Global Mute Management
- Operations Management
- Chatbots
- Official Account Management
- Webhooks
- Webhook Overview
- Webhook Command List
- Operations Management Callbacks
- Online Status Webhooks
- Relationship Chain Webhooks
- One-to-One Message Webhooks
- 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
- Webhooks related to the Official Account
- Before a Official Account Is Created
- After a Official Account Is Created
- After Official Account Profile Is Modified
- After Official Account Is Destroyed
- Before Official Account Is Subscribed
- After Official Account Is Subscribed
- After a Official Account Is Full
- After Official Account Is Unsubscribed
- Before Official Account Message Is Sent
- Callback After Sending an Official Account Message
- Webhook After Recalling Official Account Messages
- Console Guide
- FAQs
- Security Compliance Certification
- Chat Policies
- Migration
- Error Codes
- Contact Us
- News and Announcements
- Product Introduction
- Purchase Guide
- Development Guidelines
- Demo Zone
- Download
- Chat Interaction (UI Included)
- TUIKit Library
- Getting Started
- Integrating TUIKit
- Only integrate chat
- Build Basic Interfaces
- Modifying UI Themes
- Setting UI Styles
- Implementing Local Search
- Integrating Offline Push
- User Online Status
- Typing Status
- Message Read Receipt
- Message Reactions
- Message Quotation
- Internationalization
- Adding Custom Messages
- Emoji & Stickers
- Custom UI components
- Video Call (UI Included)
- Overview (TUICallKit)
- Activate Service（TUICallKit）
- Integration(TUICallKit)
- UI Customization (TUICallKit)
- Additional Features(TUICallKit)
- API Documentation(TUICallKit)
- Release Notes (TUICallKit)
- Push Feature
- Desk
- More Practices
- No UI Integration
- 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
- Message Reaction
- Message Translation
- Voice-to-Text
- Message Pinning
- Conversation
- Group
- Community Topic
- User Profile and Relationship Chain
- Offline Push
- Local Search
- Signaling
- Client APIs
- Server APIs
- Generating UserSig
- RESTful APIs
- RESTful API Overview
- RESTful API List
- Message Related
- Session Related
- Group Related
- Group Management
- Group Information
- Group Member Management
- Group Member Information
- Group Custom Attributes
- Live Group Management
- Setting Live Streaming Group Robots
- Deleting Live Streaming Group Robots
- Setting/Deleting Live Streaming Group Administrators
- Obtaining the List of Live Streaming Group Administrators
- Checking Whether Users Are in a Live Streaming Group
- 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
- Permission Group Management
- Creating Permission Groups
- Terminating Permission Groups
- Modifying Permission Group Information
- Obtaining Permission Group Information
- Adding Topic Permissions
- Modifying Topic Permissions
- Deleting Topic Permissions
- Obtaining Topic Permissions
- Adding Members to a Permission Group
- Deleting Permission Group Members
- Obtaining Permission Group Member List
- Group Counter
- User Management
- Global Mute Management
- Operations Management
- Chatbots
- Official Account Management
- Webhooks
- Webhook Overview
- Webhook Command List
- Operations Management Callbacks
- Online Status Webhooks
- Relationship Chain Webhooks
- One-to-One Message Webhooks
- 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
- Webhooks related to the Official Account
- Before a Official Account Is Created
- After a Official Account Is Created
- After Official Account Profile Is Modified
- After Official Account Is Destroyed
- Before Official Account Is Subscribed
- After Official Account Is Subscribed
- After a Official Account Is Full
- After Official Account Is Unsubscribed
- Before Official Account Message Is Sent
- Callback After Sending an Official Account Message
- Webhook After Recalling Official Account Messages
- Console Guide
- FAQs
- Security Compliance Certification
- Chat Policies
- Migration
- Error Codes
- Contact Us
Roaming Message Storage
IM supports message roaming, which means that, when users log in on different devices, they still have access to chat history.
By default, roaming one-to-one chat messages and group chat messages are stored for 7 days, and they will be deleted then. For the billing details, see Pricing.
Different SDK versions allow you to extend the storage time of historical messages for different message types.
SDK Version | Text | Custom Message | Image | File | Short Audio | Short Video | Rich Media Message |
Android 5.X | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Android 4.X | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Android 3.X | ✓ | ✓ | × | × | × | × | × |
Android 2.X | ✓ | ✓ | × | × | × | × | × |
iOS 5.X | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
iOS 4.X | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
iOS 3.X | ✓ | ✓ | × | × | × | × | × |
iOS 2.X | ✓ | ✓ | × | × | × | × | × |
PC SDK 2.X | ✓ | ✓ | × | × | × | × | × |
Web and mini program SDK 2.X | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Web and mini program SDK 1.X | ✓ | ✓ | × | × | × | × | × |
Note
We recommend you upgrade to the latest SDK version for improved user experience.
Unread Message Storage
IM supports the storage of unread messages; that is, messages sent to users when they are offline will be pulled upon next login.
For one-to-one chat, unread messages in up to 100 conversations are saved for each user for 7 days by default, with up to 250 unread messages in each conversation. Excessive messages will not be counted as unread messages, but they will still be saved in message roaming. For group chat, there are no such limits.
Recent Contacts
Similar to the list of recent contacts on QQ, recent contacts display the users who have recently contacted the current user as well as their last messages.
By default, the client will pull the recent contacts through the SDK upon login to display the conversation list, and the recent 100 contacts are stored by default for the same period as the last messages; for example, if no messages have been sent to or received from a contact for 7 days, this contact cannot be obtained in the recent contacts after the last message expires.
App Local Storage
Users do not need to store messages because the SDK stores the received messages by default. Users can call the API to obtain local messages (no network required). Additionally, local messages can be obtained through the
getMessage API. When gaps exist in local message history, roaming messages are used to fill in the gaps.
By default, the SDK does not delete user messages, but you are provided with the option to delete local messages.
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