MessageFailedWebhookPayload

{
    "type": "message.failed",
    "messageId": "0195d4e5-7b2f-7f68-9f6c-222222222222",
    "instanceId": "0195d4e5-7b2f-7f68-9f6c-111111111111",
    "to": "120363123456789@g.us",
    "messageType": "text",
    "sendAt": "2026-04-14T18:12:45.000Z",
    "attemptedAt": "2026-04-14T18:12:46.000Z",
    "failedAt": "2026-04-14T18:12:47.000Z",
    "error": {
        "code": "GROUP_SEND_ACCESS_DENIED",
        "message": "Cannot send messages to this group."
    }
}