There are many payment methods available in the OpenCart core itself and plenty of others are available at the OpenCart store in the form of third party extensions. Although sometimes you’ll find yourself in the situation where you need something different, either there is no method available for your choice of payment gateway or you want some different logic. In either case, you’re left with the only option: To create a new payment method module in OpenCart.
In this tutorial, we’ll see the back-end part of the custom method. We’ll see how to list your custom payment method along with the other payment methods. Further, we’ll check how you can create the configuration form for your custom payment method.