The 'Not in allowance' message on an employee's leave entry is determined by the absence category that has been selected.
'Not in allowance' means that the leave uses an absence class that doesn't deduct from the employee's holiday entitlement.
Check the absence class used
Search for the employee and go to their profile.
Click Absence, then Leave.
Click the 'Not in allowance' leave entry.
The absence class is displayed under Absence Category.
Once you have noted which absence class is selected, close the leave entry without making any changes.
View and amend the absence class settings
Click Setup, then Settings.
Click Module Settings, then HR.
Click Absence Class.
Search for the absence class used on the employee's leave and click it.
If you need this absence class to deduct days from the employee's holiday entitlement, tick the Holiday Allowance box.
If you don't need this absence class to deduct days from the employee's holiday entitlement, leave the Holiday Allowance box unticked and click Save.