This will prompt a new dialog box to open.
Here you can see a list of all adjustments already added to the employee, both manually and automatically by the system.
You can add a new manual adjustment by completing the Duration (days) field, and entering a Reason if required.
Apply immediately will be ticked by default. This means that the adjustment will be immediately added to the employee's allowance and used in any pro-rata calculations. If this is unchecked, the adjustment would have to be accrued in the same way as their regular absence.