When choosing a payment system, consider where your customers are located, what payment methods they prefer, and what platform your store runs on. Most e-commerce platforms support major gateways through plugins or APIs, so integration isn’t too complex if you stick to supported options. It's also helpful to understand
how does processing work so you can evaluate fees, settlement times, and how transactions are verified and completed. Security, chargeback handling, and customer support are also important factors to review before making your choice.