The Gateway uses a set of enhanced response codes to indicate if there is an issue with the transaction which prevented any authorisation response from being received from the Acquirer. These response codes start at 65536.
The codes are grouped by the type of response:
|Acquirer Response Code||1 - 65535|
|General Issue||65536 - 65791|
|3DSecure Issue||65792 - 65823|
|Checkout Issue||65824 - 65855|
|Risk Checking Issue||65856 - 65887|
|Missing Transaction Fields||66408 - 66303|
|Invalid Transaction Fields||66304 - 66559|
|Missing Transaction Fields||66560 - 66815|
|Invalid Transaction Fields||66816 - 67071|
|RTUS Issue||131072 - 131327|
Please see the Gateway Integration Guide for full details of what each code means.