A number of key factors can influence the choice of a payment system:
1. Legal compatibility (make sure that the payment system works in the territory where you sell goods.
Registration as a client of any of the payment systems is free of charge. By joining the payment system, you sign a service agreement and accept the terms and conditions under which you pay a fee for each transaction.
2. Study the conditions of work and choose the most profitable conditions for your business.
3. Make sure that the payment system has the proper level of security. The security requirements of the payment system should comply not only with the legislation of your country, but also with the security requirements of your resource.
4. Convenience of user's way. First of all, using a payment system for cashless payment for goods and services should be convenient for your target audience. Study their preferences and which of the products they use most often when shopping online, and opt for the payment system that most of your customers use.