Hi Vlad
Thanks for explaining - if you don't need the deleted users information then you don't need a backup to restore this.
It doesn't look as though you can undelete a user with HR Import but it looks like this can be done with the Upload users
- The deleted users can be viewed under Site Administration > User data management > Deleted users
- The users can then be exported to get the user details
- Prepare a file for upload user that contains the deleted column and the data from previous step with value of 0 to undelete the use
- There is a bulk user action that has a filter for HR Import value. Once the deleted user has been restored then you should be able to see the users that don't have the HR Import flag
Let us know if there are any problems with this.
Regards