group.created

project_id is always null for group events.

When this fires

A team owner or manager creates a new group. Groups bundle collaborators behind a shared permission set — several people in a team can be in the same group, and someone can be in more than one.

Required ability

group:view — token must carry this at mint time to subscribe an endpoint to this event.

Payload

{
  "id": "evt_01HX...",
  "type": "group.created",
  "created_at": "2026-05-18T10:05:00Z",
  "api_version": "2026-05-01",
  "project_id": null,
  "data": {
    "team_id": "a83f0d51-4c92-4b7e-8615-2fd9e70a3c86",
    "group_id": "1f68d92a-04c5-4e83-97b1-3d6a05e2f847",
    "code": "core-community",
    "name": "Core Community"
  }
}

Field reference

Field	Type	Notes
`id`	string ULID	Unique event id, prefixed `evt_`. Use for idempotent processing.
`type`	string	Always `group.created` for this event.
`created_at`	ISO 8601 timestamp	Server-side emission time.
`api_version`	string	Webhook API contract version.
`project_id`	null	Always `null` — account-level event.
`data.team_id`	string UUID	Team that owns the group.
`data.group_id`	string UUID	Group identifier.
`data.code`	string	Stable, human-readable group code.
`data.name`	string	Display name.

Caveats

Neither the permission set nor the member list is embedded in this event; read GET /v1/groups/{group} for the group's current permissions, and expect group.members_synced when people are put into it.
Changing who is in the group emits group.members_synced, not this event; team.member.role_changed covers a member's team role and is unrelated to groups.

group.updated — subsequent edits.
group.deleted — terminal state.
Group events overview — back to family overview.