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Sending System Messages in a Group

Last updated: 2022-04-27 16:23:40


    This API is used by app admins to push system notifications to group chats.

    API Calling Description

    Applicable group types

    Group Type ID RESTful API Support
    Private Yes. Same as the work group (Work) in the new version.
    Public Yes
    ChatRoom Yes. Same as the meeting group (Meeting) in the new version.
    AVChatRoom Yes. But only to all group members.
    Community Yes

    These are the preset group types in IM. For more information, see Group System.


    • A non-audio-video group supports sending system notifications to specified group members, but an audio-video group (AVChatRoom) only supports sending system notifications to all group members.
    • For more information on the API (V2TIMGroupListener.onReceiveRESTCustomData) for clients to receive system notifications, see Android or iOS.

    Sample request URL


    Request parameters

    The following table only describes the modified parameters when this API is called. For more information on other parameters, please see RESTful API Overview.

    Parameter Description
    https The request protocol is HTTPS, and the request method is POST.
    xxxxxx Domain name corresponding to the country/region where your SDKAppID is located.
  • China: console.tim.qq.com
  • Singapore: adminapisgp.im.qcloud.com
  • Seoul: adminapikr.im.qcloud.com
  • Frankfurt: adminapiger.im.qcloud.com
  • India: adminapiind.im.qcloud.com
  • v4/group_open_http_svc/send_group_system_notification Request API
    sdkappid SDKAppID assigned by the IM console when an app is created
    identifier App admin account. For more information, please see the App Admin section in Login Authentication.
    usersig Signature generated in the app admin account. For details on how to generate the signature, please see Generating UserSig.
    random A random 32-bit unsigned integer ranging from 0 to 4294967295
    contenttype Request format, which should always be json.

    Maximum call frequency

    200 calls per second

    Sample request

    • Basic format
      This example pushes a system notification to all members in a group.
       "GroupId": "@TGS#2C5SZEAEF",
       "Content": "Hello World" // Content of the notification
    • To specific members
      To specify who can receive the system notification, set the recipients in ToMembers_Account. Audio-video groups (AVChatRoom) only support sending system notifications to all group members, but not specified group members.
       "GroupId": "@TGS#2C5SZEAEF",
       "ToMembers_Account": [ // List of recipients. You can leave this field empty to send the notification to all members.
       "Content": "Hello World" // Content of the notification

    Request fields

    Field Type Required Description
    GroupId String Yes ID of the group to which the notification will be sent
    ToMembers_Account Array Yes List of recipients. Up to 500 recipient UserIDs are supported. You can leave this field empty to send the notification to all members.
    Content String Yes Content of the notification

    Sample response

      "ActionStatus": "OK",
      "ErrorInfo": "",
      "ErrorCode": 0

    Response fields

    Field Type Description
    ActionStatus String Request result. OK: successful; FAIL: failed
    ErrorCode Integer Error code. 0: successful; other values: failed
    ErrorInfo String Error information

    Error Codes

    The returned HTTP status code for this API is always 200 unless a network error (such as error 502) occurs. The specific error code and details can be found in the response fields ErrorCode and ErrorInfo respectively.
    For public error codes (60000 to 79999), please see Error Codes.
    The following table describes the error codes specific to this API:

    Error Code Description
    10002 Internal server error. Try again.
    10003 Invalid command word.
    10004 Invalid parameter. Check the error description and troubleshoot the issue.
    10007 No operation permissions. For example, a common member in a public group tries to remove other users from the group, but only the app admin can do so.
    10010 The group does not exist or has been deleted.
    10015 Invalid group ID. Use the correct group ID.

    API Debugging Tool

    Use the RESTful API online debugging tool to debug this API.


    Sending ordinary messages in a group (v4/group_open_http_svc/send_group_msg)

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