# Error Messages

| HTTP Codes | Value |
|  --- | --- |
| **400** | HTTP 400 - Bad Request  Failed vol/fol validation.   Regex pattern: ^([0-9]{1,5})[.][0-9]{1,3}[A,B,C,K,L]{0,1}$  Missing mandatory field in request, e.g. volumeFolio |
| **401** | HTTP 401 -Unauthorised  Client did not provide a valid JWT token |
| **403** | HTTP 403 - Forbidden  Based on the credentials provided, the broker is not authorised to access the API |
| **404** | HTTP 404 - Not Found  Volume/Folio not found |
| **500** | HTTP 500 - Internal Server Error  Unexpected internal server error |
| **504** | HTTP 504 - Gateway Timeout |