To check your Payment methods, navigate to
Config → Finance → Payment Methods.
Some payment methods are set by default. When you install a new payment module (e.g. SageOne, Netcash, Stripe, etc.), it will automatically appear in the list.
You can add a new Payment method manually by clicking the
Add button at the top right corner of the page. The window will appear where you need to type the name of the payment method and enable the option "Active".
After adding a new payment method, it will appear in customer's Billing config.
It is possible to edit or delete payment methods by clicking on the icons in the Actions column of the table.