A coupon code provides a discount for Parallels Desktop.
Coupon codes might be provided during a promotion. The amount of discount available with a coupon code depends on the terms and conditions of a particular promotion.
If you received a promo code for Parallels Desktop purchase, you should apply it in the shopping cart of the Parallels Online Store.
When you are on the Parallels Online Store page, select the type of license for Parallels Desktop for Mac you need - upgrade or full. Click on the corresponding link to buy one and you will be redirected to the shopping cart.
Mark the Check to enter coupon code checkbox, enter your code into the field thast appeared below and click Apply. The price will be adjusted.