Hello, it is important for an online business to have an independent payment system. Not all payment gateways are the same. I'm on the edge of everything to make one-time payments, then obviously the stink is similar. But sometimes you need your gateway so your mother can work harder. Even payment gateways are already surrounded by functionality, if you give a stink, change it, then the payment gateway, as you can see, has the necessary functions. I can say that recurring payments is one of the most important functions of a payment system.