Hello! I'm having some recent issues with message delivery. Some messages sent to my personal phone number (as a test) and some other numbers are not being delivered. From the same template, there are messages delivered and others not delivered, but without any apparent logic or reason. I would like to understand what could be happening. On webhook I'm receiving a payload of a return that reports the error/delivery failure with a generic code. Reading the documentation about this error code, it doesn't fit our case and that's why I'm contacting support/forum. Could anyone help-me?

Bellow a sample return payload:

{ "object": "whatsapp_business_account", "entry": [ { "id": "132019526670561", "changes": [ { "value": { "messaging_product": "whatsapp", "metadata": { "display_phone_number": "5519971220099", "phone_number_id": "118611738011797" }, "statuses": [ { "id": "wamid.HBgNNTUxOTk4ODE5MTMwNRUCABEYEjYzQjBDNzU1QTFFNDhENkM3MgA=", "status": "failed", "timestamp": "1726059026", "recipient_id": "5519988191305", "errors": [ { "code": 131026, "title": "Message undeliverable", "message": "Message undeliverable", "error_data": { "details": "Message Undeliverable." }, "href": "https://developers.facebook.com/docs/whatsapp/cloud-api/support/error-codes/" } ] } ] }, "field": "messages" } ] } ] }