| Unauthorised/Unauthenticated | Username & password in not correct(in Auth API) | 401 | missing_parameters_in_headers |
| Unauthorised/Unauthenticated | Public token is invalid | 401 | invalid_parameters_in_headers |
| Unauthorised/Unauthenticated | Public token is missing | 401 | missing_parameters_in_headers |
| Unauthorised/Unauthenticated | Public token is expire | 401 | expired_parameters_in_headers |
| Unauthorised/Unauthenticated | User access token is invalid | 401 | invalid_parameters_in_headers |
| Unauthorised/Unauthenticated | User access token is missing | 401 | missing_parameters_in_headers |
| Unauthorised/Unauthenticated | User access token is expire | 401 | expired_parameters_in_headers |
| Unauthorised/Unauthenticated | Unauthorised access to transaction | 401 | unauthorized_access |
| Forbidden | User access token is not mapped with Public access token(Client) | 403 | client_not_authorized |
| Bad Request(Parameters is missing or Invalid) | Parameter is missing in request(Either one or more parameters) | 400 | missing_parameters_in_request |
| Bad Request(Parameters is missing or Invalid) | Parameters are not incorrect(If value is not correct) | 400 | wrong_parameters_in_request |
| Bad Request(Parameters is missing or Invalid) | Parameters are not incorrect (If value is not valid) | 400 | invalid_parameters_in_request |
| Bad Request(Parameters is missing or Invalid) | Parameters are not in correct format | 400 | incorrect_format_of_parameters_in_request |
| Bad Request(Parameters is missing or Invalid) | Parameter are not in correct type(Wrong type of parameters) in request | 400 | incorrect_type_of_parameters_in_request |
