Very often web developers have to solve the problem of website integration with a payment system. Today one of the most popular online payment gateway is PayPal, which allows people to make payments worldwide. And it's not surprising that this solution is highly demanded in web development. However, in the process of PayPal integration many developers miss some important things.
We’d like to share our experience of PayPal integration into websites. In particular, we are going to write about how to set up and track payment acceptance from any user to a PayPal account and how to provide money transfers to system users.