See who is out - without maintaining a separate absence calendar.
Collect selected vacation, absence and availability appointments from existing Outlook calendars into one managed team view.
For sharing one personal calendar, Outlook's native sharing may be sufficient. Exchange Group Calendar is built for organisations that need centrally managed views across multiple Outlook calendars.

Why absence overviews get incomplete
A separate vacation calendar is only useful when everyone remembers to maintain it.
A safer way to collect selected absence items
Useful availability examples
Not a personnel leave-management system
EGC is a calendar-overview tool. It does not replace personnel leave approval, leave balances or HR administration. Use it when Outlook already contains the appointments you want to collect into a managed team view.
Graph and EWS route
Use the Graph trial for Microsoft 365 and Exchange Online. For local Exchange Server, request the EWS edition and include the internal Exchange or Active Directory domain name.
FAQ
Does EGC approve leave requests?
No. It is not a personnel approval or leave-balance system.
Can it collect selected absence items?
Yes, when the relevant items can be selected through the configured filters.
Do people still use their own Outlook calendar?
Yes. The group view is built from the calendars employees already use.
Create a clearer Outlook absence overview
Use selected calendar items from existing Outlook calendars instead of asking everyone to maintain a second absence calendar.