To migrate the users from the Subscription Portal to the Admin Console, please follow the step below:
1. Sign in to https://appstore.foxit.com/ with your Foxit Account
2. Once you Sign in, go to Manage Organization / Members > and Click on the "OrganizationName" (OrganzationName for reference)
3. The Manage Organization Members page will open, where you can click on the "Export to CSV File" button
4. Save the CSV file to a location you prefer
5. Open the CSV File (it should look like in the screenshot below)
6. Remove all columns, except the Email one and save the file(see screenshot below):
7. Proceed with the steps described in the KB article How to invite users in the Admin console
or How to Assign License (Invite Users)
Related article:
Migrating users on the Admin Console on from one product to another