Merchant back-end

When the Cash Register has performed product selection and totaled the amount, the order is typically stored in the merchant back-end. The outcome of the payment process will be stored with the order.

Refunds for existing orders are communicated from the Cash Register to the merchant back-end where an API call to the Adyen payments platform is made to perform the refund. The merchant back-end receives notifications from the Adyen payments platform.