status = scheduled. Once the message is queued or sending it cannot be recalled and this returns 409 — the message record itself is never deleted, because it is the audit record of a send (see type / basis).cancelled.curl --location --request DELETE '/messages/9c1a7e40-2b8e-4f1a-9d33-7c5b0a41e6f2' \
--header 'Authorization: Bearer <token>'{
"error": "string",
"message": "string",
"type": "string",
"reason": "string"
}