> ## Documentation Index
> Fetch the complete documentation index at: https://developers.smarterservices.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Error Messages & Codes

# Error Messages & Codes

| Error Code                | HTTP Status                 | Message                                                                                                                                      |
| ------------------------- | --------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------- |
| AUTHENTICATIONFAILED      | 403 (Forbidden)             | The server failed to authenticate the request. Verify that the value of Authorization header is formed correctly and includes the signature. |
| INTERNALERROR             | 500 (Internal Server Error) | The server encountered an internal error. Please retry the request.                                                                          |
| INVALIDAUTHENTICATIONINFO | 400 (Bad Request)           | The authentication information was not provided in the correct format. Verify the value of Authorization header.                             |
| INVALIDINPUT              | 400 (Bad Request)           | One or more of the request inputs is not valid.                                                                                              |
| INVALIDPROTOCOL           | 400 (Bad Request)           | The request was not made under a secure connection, all requests must be made under SSL.                                                     |
| INVALIDURI                | 400 (Bad Request)           | The requested URI does not represent any resource on the server.                                                                             |
| RESOURCENOTFOUND          | 404 (Not Found)             | The specified resource does not exist.                                                                                                       |
| UNSUPPORTEDHTTPVERB       | 405 (Method Not Allowed)    | The resource doesn't support the specified HTTP verb.                                                                                        |