message.failed

{
  "id": "evt_01JZQ6F5H7K9M1P3R5T7V9XZBD",
  "object": "event",
  "type": "message.failed",
  "created_at": "2026-09-06T09:41:02.114Z",
  "api_version": "2026-09-01",
  "data": {
    "object": "message",
    "id": "msg_01JZQ3F8X2K7N4B6Y0R9M5TCWA",
    "to": "+201005550123",
    "status": "failed",
    "error": {
      "code": "recipient_not_on_whatsapp",
      "title": "Recipient is not a WhatsApp user",
      "message": "+201005550123 has no WhatsApp account on this number.",
      "meta_code": 131026
    },
    "status_at": "2026-09-06T09:41:05.000Z"
  }
}