Currently, native store only supports Stripe and PayPal as payment gateways.
Stripe
Connect Stripe
To connect to Stripe:
In the side panel, click eCommerce, then click Store Management.
Click Set up payment gateways.
Click Connect Account next to Stripe.
Follow the on screen prompts to log in and connect your Stripe account.
Once your Stripe account has been successfully connected, a green connected badge displays on the Payment Gateways screen.
PayPal
PayPal is one of the most accepted payment methods worldwide, supporting online sellers from almost every country. With the PayPal integration, you can choose between the following options:
Express checkout. Shoppers are redirected to PayPal to log in to their account and then approve the payment. Once the payment is approved, the shopper is redirected to back to your store. If you already have Stripe set up, you can also add express checkout.
PayPal advanced credit card payments and express checkout. This option allows your shoppers to choose between express checkout and advanced credit card payments. For advanced credit card payments, shoppers stay on your site during the checkout process and are not redirected to PayPal at any point. This allows you to customize the entire checkout experience. This method is currently available only in select countries, and for those with existing Business PayPal accounts.
Connect PayPal
To connect PayPal:
In the side panel, click eCommerce, then click Store Management.
Click Set up payment gateways.
Click Connect Account next to the PayPal method you want to use.
Follow the on screen prompts to log in and connect your PayPal account.
Once your PayPal account has been successfully connected, a green connected badge displays on the Payment Gateways screen.
Refunds
Currently, you must issue refunds through the Stripe Dashboard or PayPal. For more information, see Stripe's Refund a Customer and PayPal's Issue a Refund articles. In the future we will add the ability to issue a refund directly from the store.