`session_absolute_timeout`

HTTP 401authentication_error

The recipient's session has reached its longest allowed time. Open the delivery link again.

Handling it

Fix the request and send it again. message says what is wrong, and param names the parameter where there is one. Keep the request_id: it lets Parasend find the request.

The error, as the API returns it

{
  "error": {
    "type": "authentication_error",
    "code": "session_absolute_timeout",
    "message": "The recipient's session has reached its longest allowed time. Open the delivery link again.",
    "param": null,
    "request_id": "req_5e69684dc3de68bf8651a712"
  }
}