As an administrator it is very useful to know if your employees have synchronized an external calendar and which calendars are taken into consideration when planning appointments
to access this navigate to:
1. Manage Organization
2. Employees and look up the right employee
3. Tab "Synced calendars"
4. you see the settings of the calendar
5. You can see when the agendas were last coupled
For more information about which calendar settings you can activate, please check: