Many fields on your transaction records can help you troubleshoot your payments, including the Response Code, Reason Code, and Gateway Response fields. These fields report information returned by your gateway and are helpful when determining why your transaction’s Response Status is ‘declined’ or ‘error.’ You can often obtain more information by entering these codes into a search engine or consulting the documentation provided by your gateway provider.
Here are some helpful links to help you understand the decline reasons or support options for your specific gateway. Not all gateways have the response codes/reason codes listed on their website, and they may advise you to contact the issuing bank for the specific decline reason.