Forum Discussion
Outlook Calendar Groups Malfunctioning
I'll save anyone reading this thread some time - these are the two solutions that have worked for people:
For me, it worked to repair my Outlook installation:
It seems people have misunderstood my original solution. I did not "re-install" Outlook, I "repaired my installation" of Outlook. Those are two different things. I haven't had the issue since then. See this link to learn how to repair the installation: https://www.slipstick.com/tutorial/repair-office-outlook-installation/#:~:text=The%20steps%20are%20basically%20the%20same%20for%20all,the%20desired%20repair%20option%20and%20complete%20the%20wizard
For others, it worked to uncheck "Turn on shared calendar improvements".
- File
- Account Settings
- Account Settings (Again)
- Email Tab
- Double Click Your Email In The List
- More Settings
- Advanced
- Uncheck "Turn on shared calendar improvements" Under "Microsoft 365 Features"
- Click Apply
- Click OK
- Exit Outlook Entirely
- Restart Outlook
If it doesn't work after these steps, restart your computer and then check again before assuming this step hasn't worked. If another solution is found, I will edit this comment with that solution.
I think Alyssa already solved her problem by reinstalling Office.
For us, unfortunately, neither reinstalling or disabling "Calendar Improvements" worked.
Best regards
Martin
Our experience is the same as MartinHolstDk. Uninstalling/reinstalling Office/Microsoft 365 doesn't resolve the issue. Enabling/disabling shared calendar improvements also offers no resolution.
MartinHolstDk, thanks for sharing the Outlook.exe/ResetSharedFolders "solution." Until Microsoft changes the functionality in OWA to allow an individual calendar to be added to multiple calendar groups, I suspect I'm going to have to document a work around solution for our admin assistants that will still require cleaning up calendar groups. If you get a resolution from Microsoft, please let us know. Thanks!
I'll save anyone reading this thread some time - these are the two solutions that have worked for people:
For me, it worked to repair my Outlook installation:
It seems people have misunderstood my original solution. I did not "re-install" Outlook, I "repaired my installation" of Outlook. Those are two different things. I haven't had the issue since then. See this link to learn how to repair the installation: https://www.slipstick.com/tutorial/repair-office-outlook-installation/#:~:text=The%20steps%20are%20basically%20the%20same%20for%20all,the%20desired%20repair%20option%20and%20complete%20the%20wizard
For others, it worked to uncheck "Turn on shared calendar improvements".
- File
- Account Settings
- Account Settings (Again)
- Email Tab
- Double Click Your Email In The List
- More Settings
- Advanced
- Uncheck "Turn on shared calendar improvements" Under "Microsoft 365 Features"
- Click Apply
- Click OK
- Exit Outlook Entirely
- Restart Outlook
If it doesn't work after these steps, restart your computer and then check again before assuming this step hasn't worked. If another solution is found, I will edit this comment with that solution.
I revisited this issue this week and have some experience updates.
Using OWA, I still cannot add an individual's calendar to more than one calendar group. Microsoft really needs to address this. The options for doing so have changed since I last tried in Oct/Nov 2022 and hopefully give you the impression that this can be done, only to fail at the end of the process.
What has also changed (and I can't tell you why) is that UNCHECKING the Turn on shared calendar improvements box has improved the functionality of calendar groups in the Outlook 365 app, confirming one of AlyssaL036's suggested resolutions. Previously, if an individual's calendar appeared in multiple calendar groups, the O365 app user would see that individual's calendar duplicated numerous times in those calendar groups. Yesterday I unchecked the turn on shared calendar improvements box, exited and restarted Outlook and saw the calendar group listings shuffle into the correct order. This resolved the issue for me and one other person. I'm testing further next week with another individual.
Using the calendar group feature shouldn't have to be this hard and unpredictable.