If you purchased the one-time license for Foxit PDF Editor/Pro for Teams, you won't receive the license key code. This perpetual license is managed by the Admin Console.
To activate this product, please log in to the Foxit Admin Console "https://adminconsole.foxit.com/" with your super admin account. Click License Management> click Assign License in Orange>in the user list please select your account> select the program Foxit PDF Editor> click OK
Then open Foxit PDF Editor Pro for Teams, click the "Activate" button in the activation wizard or click "Help/Home>Activate" in the ribbon, then click the "Sign In" button and follow the onscreen steps to enjoy your product license.