Outgoing conversation: Contact address type does not match proxy address type

A conversation could not be created because the provided Twilio proxy address does not match the contact's expected channel type.

• The outgoing conversation callback returned a Twilio proxy number that does not match the channel type of the contact address.

• Make sure that the proxy_address value that is returned from the Outgoing Conversation callback has the same type as the channel over which the conversation is being created (i.e., for a WhatsApp conversation, use a Twilio proxy number with the prefix whatsapp:).
• Check out the docs on how to create outgoing conversations.