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group_join message

A member joined a group

Facts

Required Scopes
No scopes required!
Compatible APIs

Usage info​

This example includes both the event wrapper and the event structure for the group_join message subtype event.

{
    "token": "XXYYZZ",
    "team_id": "T123ABC456",
    "api_app_id": "A123ABC456",
    "event": {
        "type": "message",
        "subtype": "group_join",
        "ts": "1358877458.000011",
        "user": "U2147483828",
        "text": "<@U2147483828|cal> has joined the group"
    },
    "type": "event_callback",
    "authed_users": [
        "U123ABC456",
        "U222222222"
    ],
    "event_id": "Ev123ABC456",
    "event_time": 123456789
}

A group_join message is sent when a member joins a private group.

If the user was invited, the message will include an inviter property containing the user ID of the inviting user.