We had some old admins accidentally move some data around and it changed the values in a User Lookup on one of our custom objects.
I can recover the history of the field, but a lot of the users are no longer with the company and have been deactivated.
I have a solution that would re-activate a user, re-assign the records and then deactivate the user in a single script. But I want to confirm that as long as I do this User by User and stay under our license count I won't be billed for the users I toggle on and off.