The Authorize.net payment gateway returns transactions results that indicate whether the transaction was accepted or declined and includes information about the transaction. You can use Authorize.net's Response Code Tool to determine what each reason code means. Simply enter the reason code and click Submit. You can also view a complete list of reason codes on Authorize.net's website.
Please contact Authorize.net for additional information regarding response codes and errors. Please have the response code and reason code available when you contact them.