2CheckOut payment integration is set in the AShop Administration Panel through Store Configuration > Payment.
There are some settings within the 2CheckOut.com merchant panel that relate to return response codes for shopping cart integration. None of these settings are required for AShop to work with 2CheckOut,however there are some settings that can disable the integration with AShop and there are also some optional features.
Demo Mode
Demo mode for 2CheckOut can only be set from within the 2CheckOut merchant panel under Account Details > Sales Details.
The demo mode setting within AShop doesn't work with 2CheckOut. Set the Put Shopping Cart Routine in Demo Mode to Yes for testing, then reset it to No before going public.
2CheckOut Payment Confirmation Page
After a successful test transaction, the 2CheckOut payment confirmation page appears. A button must be clicked to proceed and complete the order with AShop. 2CheckOut provides a setting to bypass their confirmation page under Account Details > Return, but this option disables the return response code.
1.
Scroll down the page to the "Overall Passback Requirements".
2.
The Direct Return must be set to No for AShop to work with 2CheckOut.