At least one Payment Method resource must be set up and designated with the Authorize.net service provider. All credit card types can be processed under the same payment method or multiple payment methods can be setup for each credit card that will be processed through the Authorize.net service provider.
How do I set up my customer?
A default “Pay With” can be setup on the customer resource with the customer’s payment method.
A default “Pay With” can be setup on the customer resource with the customer’s payment method.
This is not required, but if indicated on the customer resource, this payment method will default into all orders entered for the customer.