63002: Channel could not find the From address

Twilio returns this error when the From address in a Programmable Messaging request does not map to a configured Channel endpoint address. This error applies to WhatsApp and other non-SMS messaging channels. For WhatsApp sandbox traffic, use the whatsapp:<sandbox phone number> format, and for live senders use the sender address assigned to that channel.

• The From address in the request is incorrect or does not match the channel address exactly.
• The sender address is not associated with the Channel or WhatsApp installation you are using.
• You are sending from a WhatsApp sandbox or live sender without using the channel-specific From format Twilio expects.

• Use the exact Channel endpoint address shown on the Channel page, and make sure the From value matches that address for the channel you are sending through.
• If you are sending via WhatsApp sandbox, set From to whatsapp:<sandbox phone number> and activate the sandbox before sending messages.
• If you are sending via a live WhatsApp sender, use the whatsapp: sender address that is configured for your number.
• Check Error Logs and Programmable Messaging Logs to review the request details, sender configuration, and the associated Message SID.

• Programmable Messaging
• Debugging Tools
• The WhatsApp Business Platform with Twilio: Best Practices and FAQs