The Centre Calendar is used for centre closures.
School Calendars are used for school-aged children to indicate which days are in-service days so that Fastoche can properly schedule and charge those child accounts.
School calendars are only necessary for centres that have school-aged and kindergarten children.
The centre calendar takes priority over all school calendars. So if you mark a day as closed on the centre calendar and that parents do not pay for that day, the school calendars showing an in-service day will be over-ruled.