The following is a complete listing of error messages that could be returned by the service.
| Message | Description | HTTP Status Code |
|---|---|---|
| License key is required | The license key was not provided with the request. Contact customer support to obtain a license key. | 401 |
| First name, last name, address, city, state and match level is required. | First name, last name, address, city, state and match level is required. | 400 |
| An invalid match level was entered. | At least one valid match level indicator is required. See MatchLevel. | 400 |
| An error has occurred. The system administrator has been contacted. | An internal error occurred during the execution of the service. Please contact customer support if you receive this message and provide the transactionid from the response. You are billed for only successful calls, so if you encounter an error we recommend retrying the call. | 500 |