Dec 14 2017 01:04 AM
Dec 14 2017 01:04 AM
Since few months shared calendars are gone from macOS Calendar apps (not Outlook on Mac, the native calendar app of macOS).
It's a well known bug who impact every macOS version who has been introduced this summer and was supposed to be solved soon.
I've just got the phone support for Office 365 who told me that this issue wont be fixed and shared calendar support will just be removed for macOS.
Is it true? If so it's a really big drawback in Office 365 who was just perfect for Mac users until this bug.
(And no, using Outlook isn't a valid answer for this, Calendar app is more suitable for some user and the feature was supported in the past)
Dec 14 2017 10:41 AM
Shared calendars are and will continue to be accessible from the native Mac OS X calendar app. However, we are not exposing all the improvements to shared calendars via the EWS protocol, which is what that app uses. Users on the native Mac OS X calendar app will continue to be reading & writing directly to the shared calendar in the old-model of calendar sharing.
It's possibly a bit confusing because the iOS calendar app (which is branded as the same app) uses EAS, which is a supported protocol for the new shared calendar improvements.
In other words, if you accept a new shared calendar, you will see it appear on your iOS calendar app without any additional actions, but it will not show up automatically in the Mac OS X calendar app (you still need to go and open that calendar explicitly from within the app).
Does that make sense?
Dec 14 2017 10:24 PM
Dec 15 2017 02:31 PMSolution
Mar 20 2018 02:00 PM
Hello - I believe I also have this issue. Essentially I cannot (where I used to be able to) add an Office 365 shared calendar to iCal via Delegation. The shared calendars cannot be found, despite seeming to have the correct permissions. Two relevant screencaptures attached.
Any guidance would be most appreciated as Google has failed to provide a solution.
Sep 24 2018 01:51 PM
I am also interested in this.
We are developing a calendar client based on EWS. Some of our Office 365 users cannot add delegate calendars. Interestingly, trying to add these shared calendars on Apple Calendar on macOS, it also fails (see image).
Oct 09 2018 11:20 AM
Nov 08 2018 01:23 AM
Is there any new status on the original request?
A customer of mine is sharing calendars across the organization and they all use Mac and Mac Calendar.
They seem to see the invitations to other users randomly, though they cannot accept, reject or do anything about them.
Nov 08 2018 02:57 PM
The Mac OS X Calendar application uses a legacy API (the EWS API) which does not support shared calendars. Apple will need to update their Calendar app to use REST APIs in order to view & manage shared calendars.
However, you can use the Outlook Mac client to manage & view shared calendars. We've just rolled out a major update that greatly improves the shared calendar experience. This update is currently available to all Office 365 users on Insider Fast builds, and we hope to have it available to all users by end of year. If you want to join Insiders Fast, you can follow the instructions here.
Below are some of the highlights of this update:
In addition to all the calendar sharing improvements above, there is some additional calendar goodness in this Mac update: such as the ability to add inline attachments to a calendar invite, create Teams meetings, or choose to prevent forwarding a meeting invite (already released in Windows & Web).
Feel free to direct-message me with any feedback!
Nov 09 2018 06:54 AM
Thank you Julia for responding.
It is supporting shared calendars to the extend that they can easily add and see each others calendars.
When they get an invitation, they can also accept it in Mac Calendar.
The only annoyance is that they can randomly see invitations to other people in the organization. I suppose that is due to the "invisible" shared folders.
I am awaiting the new rollout, it might make a change to the behaviour, even though Apple is not supporting REST API actively.
I'll talk to them about using Outlook too.
Dec 12 2018 12:26 PM
For what it's worth, today I reinstalled MacOS Sierra 10.12 and shared calendars (in iCal, via delegation) work just fine. Your mileage may vary.
Dec 13 2018 01:18 AM
Problems arises when they see meeting invitations addressed to persons in the shared calendars, not their own.
This behaviour seems random.