Licenses are required for every unique user, resource and public folder that is to be migrated. The licenses are, therefore, consumed per each unique import name selected for migration. The licenses are then tied to the import name, meaning that a re-run can be performed for that user at no additional cost.
If a migration or Check User State is attempted, each user that has been checked/created, migrated or failed will have consumed a license. If you have to go back to the users list to edit import names and you attempt the same again, that will require more licenses.
The licenses are also bound to the platforms selected to migrate between and the destination domain name, If any of those change then additional license(s) may be required.
File Migration Licenses
As above, each unique import name requires a license. For file migrations, however, every 10GB of file data to be migrated must also be licensed. Speak to our sales team directly for more information.