The quota is used to control how many crews that can be on vacation in the selected period.
Create new Quota and attach it to a Quota group.
Valid From/To: Period where the quota value is valid.
Value: The number of crew on vacation per day
Margin: Is used to indicate that you are allowed to exceed the Value.
You can have several periods with different quotas.
Note: You can’t create a period that start before the current month. E.g. if current month is SEP18 you can’t make a period that start AUG18