GSPay Payment gateway

This payment gateway consist of two type in our integration. First is used API and second is a non API, there is a limitation on GSPay non API integration where once we post the customer to their payment page at GSPay terminal. the customer will never return back to the store's final page. SO how do we approved this transaction? yes there is Callback notification of the payment status ONLY. In this way we manage to process the order(s) but not manage to greet the customer with a final payment (thank you) page.

Otherwise, for API all this limitation solved and same goes to other API integration, it is best to use this kind of payment gateway integration as your customer no need to leave your store and can encourage them to pay and buy more after payment made without leaving your store.