Enter Promotional Codes
A Promo Code can be used to record a promotional event applying to a sale. Examples include coupon numbers, ad references, sale event names, etc.
Recording promotional codes on receipts allows you to filter reports by the codes to evaluate the effectiveness of your promotions and advertising.
Optionally, you can require an entry in the Promo Code field before a receipt can be saved via a company preference setting.
To record a Promo Code on a receipt:
Start the receipt normally.
From the I Want to Menu, select Add/Edit Promo Code.
Or
Click the red Promo Code button at the bottom of the receipt (only present if Promo Code entry required).
Enter a code in the popup dialog and click OK.
The Promo Code field and entry is displayed on the receipt. 
To edit the entry, double-click the field.
Pro Note:
Promo Codes are also applicable to customer orders.