Phonenumbers
Phone Numbers represent the phone numbers assigned to your partner account.
Use the list phone numbers endpoint to discover which phone numbers are available for sending messages.
When creating chats, listing chats, or sending a voice memo, use one of your assigned phone numbers
in the from field.
Ineligible numbers. A number can temporarily lose the ability to deliver messages.
While it is in that state, requests that would produce new activity on it — sending a
message, creating a chat, reacting, typing, group actions — are rejected with 403
(error code 2027) before anything is created. Reads keep working, so your existing
chats, messages, and history stay available. Omit from on POST /v3/messages and we
pick an eligible number for you, skipping ineligible ones; if none of your assigned
numbers are eligible, you get 409 (no from number was ever chosen, so there’s no
specific number to blame with a 403).