---
title: 1012: From ambiguous. | API Docs
description: More than one of your numbers could serve this conversation.
---

**HTTP status:** `503`.

The account holds several eligible sending numbers for this destination and none is pinned, so the send cannot choose. Nothing was sent.

## Troubleshooting

- Resend with from set to the E.164 number you want this conversation to use; it becomes the pinned sender.

## Related

- [Phone numbers guide](/channel/whatsapp/guides/phone-numbers/index.md)
- [Sending a message](/channel/whatsapp/api/resources/chats/subresources/messages/methods/send/index.md)