Fully integrated overlay calendar from Exchange
Make the calendar webpart so it can fully overlay any number of calendars from Exchange, and also make them writable. For example have a room calendar in Exchange where non Exchange users can see the calendar and even make a reservation.
Why even offer a Sharepoint calendar if it cannot take overlays from Exchange calendars?
We have fully MS-hosted 365 and SharePoint. It's a shame (and quite surprising) that we can't embed a 365 calendar into SharePoint.
Jeremy Krahn commented
This would also resolve long-standing issues of trying to overlay an Exchange calendar looking like it should work but producing an error (see https://community.office365.com/en-us/f/154/t/422985?ss-src=related).
Nathan Urselmann commented
Please add this feature