Assigning customer to sales allows you to track your customers' purchase history and preferences. It also enhances your ability to market to customers using the integrated e-mail marketing features in the Back Office.

In the POS settings you can configure the POS app to remind you to assign a customer to each sale:

Open the slide out menu and tap Settings.
Scroll down to and tap Customer Prompt and set the ON/OFF toggle to:

ON - to ensure the POS app always prompts the POS user to capture the customer for a sale.
OFF - to ensure the POS app does not prompt the POS user to capture the customer for a sale.

Note: When the Customer prompt setting is ON, you will receive a reminder to assign a customer at check out if one is not already assigned.