If you accidentally delete users, you can restore their account and data up to 30 days after deletion.
To begin the process, click on Users & Groups, then on Users.
Click on Bulk User Management.
Use the dropdown to select Recover Users and then on the Recover Users button.
Use the checkboxes to select the users that you want to recover, then on Recover Selected Objects.
After accepting the final confirmation prompt, the users you selected will be restored.
Please note that it is not possible for us to recover users who were deleted more than 30 days ago.