Payments
Card payments, payment providers and methods.
Payments covers how customers pay you and what happens behind the scenes: payment gateways, processors, merchant accounts, card security, refunds and disputes. It is written for store owners setting up checkout for the first time and for those who want to understand the real cost of each order.
The guide here explains who does what in the payment chain, how to choose between an all-in-one provider and a merchant account, how to compare fees per order, which methods your customers expect and why card data should stay off your own server. It ends with connecting, testing and planning for refunds.