## Response Error Codes

The following table identifies error codes specific to the Risk Service APIs.

br
| Error Code | Description | Handling |
|  --- | --- | --- |
| 900 | Internal error, such as database connection, or third-party errors. | Contact the NPS Tech Support team. |
| 901 | Service is in stand-in mode. | Contact the NPS Tech Support team. Stand-In mode indicates that the third party is unable to process the request. |
| 950 | Merchant is not configured properly, or merchant is not configured to use the Risk Service. | Correct the merchant configuration. |
| 960 | Data validation error.  Note: This error code will provide additional error description in the response message “message” and “dataPath” fields. | Check message in the response and correct the error. |
| 970 | Data not found.  Note: This error code is applicable to the retrieve score service. | Retrieve Score request; unable to locate risk score. Confirm UUID is correct. |