Post Checkout Popup page gives you the option to set a popup to appear after they checkout on the order status page. This popup informs the customers of your affiliate program.
The Popup is a useful tool, which helps in spreading the word about the affiliate program you are running. This feature helps you to recruit more affiliates in your program.
GoAffPro lets you setup and customize the popup, to do so, enable the Post Checkout Popup, and click on Setup.
After clicking on setup, you will be given an option to choose the popup style you want to display to your customers.