Release Notes
Announcements
Feature | Limit Item | Description |
One-to-one/group message | Content length | A one-to-one or group message must be no longer than 12KB. |
| Sending frequency | One-to-one message sending frequency: No limit for sending on the client; sending through the RESTful API is subject to the API frequency limit specified in the API documentation.Group message sending frequency: Up to 40 messages can be sent per second per group (regardless of the group type, and this limit applies to each group separately). |
| Receiving frequency | Android/iOS/Mac/Windows/iPad: No limit for one-to-one messages or group messagesWeb: Up to 1,000 messages/second (total of one-to-one messages and group messages) for SDK versions earlier than 2.11.2; no limit for the SDK on v2.11.2 or later. |
| Size of a single file | When sending file messages or short video messages, the SDK supports a maximum file size of 100MB. When sending picture messages or voice messages, the SDK supports a maximum file size of 28MB. SDKs do not support creating and sending file messages. The Chat SDK for web does not support creating and sending voice messages. |
| Message history storage period | The default configurations for different plans are as follows: Free Trial: 7 days, with no extension supported Standard edition: 7 days, with extension supported Pro edition: 30 days, with extension supported Pro Plus edition: 90 days, with extension supported Enterprise edition: 90 days, with extension supported |
UserID | Naming rule | The maximum length of a user account is limited to 32 bytes. English letters or numbers are supported. Special characters are not allowed. |
User profile | Custom field | The keywords of custom fields must consist of English letters with a length no longer than 8 bytes. The length of the values of custom fields cannot exceed 500 bytes. |
UserSig | Validity period | User password. The signatures generated by the default API of the Chat backend SDK expire after 180 days. |
Conversation management | Number of recent contacts | Each user can save up to 100 recent contacts by default. The Pro edition、Pro Plus edition 、Enterprise edition, supports up to 500 recent contacts. The limits can be configured in the console. |
User relationship chain | Friends and friend groups | A single user can have up to 3,000 friends. The maximum number of pending friend requests supported is 100. The maximum number of friend lists supported is 32. The maximum length of a friend list name is 30 characters. The maximum length of friend remarks is 96 characters. Starting from v2.13.0, the Chat SDK for web supports friend relationship chain. |
| Blocklist | A single user can add a maximum of 1,000 users to the blocklist. |
Group | Number of groups | This refers to the total number of existing groups of all group types per `SDKAppID`, excluding disbanded groups. If the limit is reached, unnecessary groups can be disbanded first before new groups are created. The limits are as follows: Free Trial: 100 Standard or Pro edition、Pro Plus edition 、Enterprise edition: No limit |
| Number of group members | Audio-video group (AvChatRoom): No upper limit on the number of group members. For non-audio-video groups, the default configurations are as follows: Free Trial: 20 members/group Standard edition: 500 members/group Pro edition: 2,000 members/group Pro Plus edition:5,000 members/group Enterprise edition:6,000 members/group |
| Number of groups a user can join | This refers to the total number of groups of all group types that a user can join. The limits are as follows: Free Trial: 50 groups/user Standard edition: 1,000 groups/user Pro edition:1,000 groups/user Pro Plus edition :3,000 groups/user Enterprise edition:5,000 groups/user |
| Group profile | The maximum length of the group name is 30 bytes. The maximum length of the group introduction is 240 bytes. The maximum length of the group announcement is 300 bytes. The maximum length of the group profile photo URL is 100 bytes. The maximum length of the group name card is 50 bytes. |
| Custom group ID | The custom group ID must be printable ASCII characters (0x20-0x7e) with maximum length limited to 48 bytes. It cannot begin with @TGS# so as to avoid confusion with the default group IDs assigned by Chat. |
| Group custom field | Groups support up to 10 custom fields: The Key field is String type, with a maximum length of 16 bytes. Its name can contain only uppercase and lowercase letters, numbers, and underscores. The Value field is a user-defined buffer and can be binary data. The maximum Value length for groups is 512 bytes. |
| Group member custom field | Group Member supports up to 5 custom fields: The Key field is String type, with a maximum length of 16 bytes. Its name can contain only uppercase and lowercase letters, numbers, and underscores. The Value field is a user-defined buffer and can be binary data. The maximum Value length for Group Member is 64 bytes. |
| Number of topics in a community | Currently, a community supports up to 200 topics. |
Limit Item | Description |
Call frequency | Up to 200 times/second: other RESTful APIs |
API | Description |
Importing multiple accounts | Up to 100 user names can be imported at a time, and this API does not support directly importing nickname and profile photo information of accounts. |
Querying online status of accounts | A single request can query the status of up to 500 users. |
API | Description |
Sending one-to-one messages in batches | A single request can send one-to-one messages to up to 500 users. |
API | Description |
Importing friends | A single request can import up to 1,000 friends. |
API | Description |
Adding group members | A maximum of 100 members can be added at a time. |
Deleting group members | A single request can delete up to 500 members. |
Querying a user’s identity in the group | A single request can query up to 500 accounts. |
Batch muting and unmuting | A single request can mute/unmute up to 500 accounts. |
Sending ordinary messages in a group | The default sending frequency of a single group is limited to 40 messages/second. If two messages sent within 5 minutes from the same sender have the same random value (Random parameter), the later message will be discarded as a duplicate message. |
Importing group messages | A maximum of 20 messages can be imported by a single request. Messages must be imported in ascending order by timestamp. The timestamps of imported messages must be earlier than the current time and later than the group creation time. Otherwise, the import fails. |
Importing group members | Audio-video groups (AVChatRoom) do not support importing members.Up to 300 members can be imported in one request. However, different group types have different group member limits. For more information, see Group Features. |
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