To process a payment, simply click on the payment icon located at the top left corner of the screen. Then, select the "new payment" option and enter the amount that the customer wishes to pay. They can choose to pay either through contactless or by inserting their card.Once the payment goes through, the system will ask if you would like to print a receipt for the customer. If you select "yes," the customer receipt will print out first, followed by a copy for you. If they don't need a receipt, you can choose "no," and it will print only one copy for you.