Events

Message reaction added

postWebhookmessage.reactionAdded

Payload

idstring required
type'message.reactionAdded' required
apiVersion'2' required
createdAtstring date-time required

Example payload

{
  "createdAt": "2026-09-14T10:32:00.000Z"
}

Response

Any 2xx acknowledges it.

Changes

Webhooks have no change history: a webhook is keyed by its event name rather than a path and method, so no recorded change can name it.