# 63007: Twilio could not find a Channel with the specified 'From' address

Log Type: APPLICATION

Log Level: ERROR

## Description

This error occurs when the `From` value in your Messaging API request does not map to a configured channel sender. Use the correct channel-specific address format for the sender you want to use. For WhatsApp, the required format is `whatsapp:{phone_number}` with the phone number in `E.164` format.

### Possible causes

* The `From` address is not associated with any configured channel sender or WhatsApp installation.
* The `From` address is formatted incorrectly for the channel. For WhatsApp, use `whatsapp:{phone_number}`.
* You are trying to send from the WhatsApp Sandbox, but the Sandbox is not activated for the account making the request.
* The sender is still being registered or verified and is not ready to send traffic yet. After registration, retrieve the sender and confirm `status` is `ONLINE`.
* The request uses credentials for a different account or subaccount than the one that owns the sender. Twilio requires the phone number and sender to belong to the same account or subaccount where you register and send from it.

### Possible solutions

* Verify that the `From` value matches the channel address format exactly. For WhatsApp, use `whatsapp:+15558675310`.
* If you are using the WhatsApp Sandbox, send from `whatsapp:+14155238886` and activate the Sandbox in the same account before sending messages.
* If you are using a live WhatsApp sender, confirm that the sender is registered to your account or subaccount and retrieve the sender to verify `status` is `ONLINE`.
* If you send from a subaccount, authenticate with that subaccount's `Account SID` and `Auth Token` when you make the API request.

#### Additional resources

* [Twilio Messaging Channels](/docs/messaging/channels)
* [Test WhatsApp messaging with the Sandbox](/docs/whatsapp/sandbox)
* [Register WhatsApp senders using the Senders API](/docs/whatsapp/register-senders-using-api)