Each new sale is assigned to the default "walk-in customer", but you can easily assign a sale to a specific customer by looking up a customer record. This procedure also works if you accidentally assigned the wrong customer to the sale.
Follow these steps to remove a customer assigned to a sale:
Do one of the following:
iPad Users: Tap the button that displays the customer's name on the Point of Sale screen to display the customer search window.
iPhone/iPod Touch Users: Tap Customer on the Ticket screen and then tap Search for Customer.
Tap Remove customer from ticket. The button will now display Assign customer instead of the customer's name.