Can I add Pinterest to my Happy Checkout page?

Certainly. Pinterest support has been re-added to the Happy Checkout app. Simply enter your Pinterest user name in the "Pinterest" section of the settings:

You may then configure which button styles you'd like to use and whether to add a follow button. Once this is configured, the Pinterest widget will be added to the "Thank You" page. 

This will allow customers to follow you, or to pin any products they just purchased to their own boards!