If you want to reactivate a user after a long absence, there are two different options:
When the employee enters the company:

If you no longer require an employee’s time sheets or balances, we recommend that you create a new user account for the employee in TimeTac. If the previous user name is to be reused, then the previous user must be renamed (e. g. “Username_old”). The new user can then be created as a copy of the previous user.
Longer absences or inactive periods:

A work schedule with 0 hours planned must be created for the period of absence. Otherwise, minus hours would be generated.

This work schedule must be assigned to the desired user via the menu User Management for the period of the absence.

Afterwards, the work schedule must be assigned to the user with the correct start date.

Please check the Work Schedule Record to see if the settings were adjusted correctly.

Navigate to User Management and select the desired employee with one click. Then navigate to the right side menu Details, open the sub menu Leave Management. Click on the button next to Leave Entitlement Record and the pop-up window Edit Leave Entitlement opens. In the field Value you can enter the required number of days off (the value must be negative for deduction). Now click on Add Record. Double-click in the field Comment to leave a note.