Some customers purchased one-time licenses from a reseller or distributor. Below function allows you to add a license key to your own Foxit account so that you can see the activated device list.
1 Logging Foxit website and click on Orders > License > Binding a License
2 Fill in out the fields with your order number and registration key code, then you will be able to view your activation list under License tab.
For one-time licenses purchased from Foxit directly, the license key can only be binded to the account that is registered with the billing email that you provided when placed the order. The license can be found as well under Orders tab after clicking an order number. For more details, please take a look at: How to Find My Order Information, Invoice, Software Download Link, Activation Record and deactivate license through Foxit My Account?
Please contact Support Team if you are unable to bind a license key.