Errors / list_not_found

Contact list not found

HTTP 422invalid_requestlist_not_found

The `contact_list_id` does not match a list on this account.

What to do

Create the list first. A campaign sends to a list, so this is the step between having contacts and being able to message them.

What it looks like

{
  "error": {
    "type": "invalid_request",
    "code": "list_not_found",
    "message": "…",
    "doc_url": "https://docs.textmast.com/errors/list_not_found",
    "request_id": "req_01j8xk2p7n4qc3m9v0wz5bt6ay"
  }
}

Quote the request_id if you get in touch. It is on every response, including this one, and it turns a support email into a single log query rather than an archaeology exercise.