Hello, the integration of the payment system on the site is not difficult, but it is important to choose the right company. You can rely on criteria that will help you set up the right tools for working with payment. The first step is to decide which payment system to choose for the site. Companies provide different services, but it is important to pay attention to the main criterion - the presence of a trading account. Modern systems, such as those on payadmit.com, have combined the gateway and the trading account, it is much easier to open them, the money is immediately credited to the store account and can be used. Integration with the payment system is possible only if the service provider fully complies with the security rules.