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This might be the issue/workaround - Outlook shows conflict errors when updating or cancelling meetings - Microsoft Support
Kevin-Thank you. I was able to do a work around and figure it out. All good now, thanks again.
Happy to hear that it's all fixed now.
-Stephen N.
Hello. I have the same issue. And I apply this solution everytime. However it's recurring. Is there a permanent fix to stop the conflict?
I had this issue continuously for the past two weeks. Outlook popping up with over 40 sync errors when trying to change the meeting.
After disabling Outlook calender in Teams, and selecting the last version, it;s solved. (Teams -> Settings -> Notifications and activity -> Caldener -> "Turn both settings to "Off"
The other solution is disable Outlook cache, but that slows down Outlook. I expect there's a issue with using Outlook Calender integration in Teams and Outlook in caching mode (which is the default).