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MartinHolstDk's avatar
MartinHolstDk
Copper Contributor
Jan 05, 2022

Outlook Favorite Folders and Calendar Groups not syncing from Exchange Online

Hello, One of our colleagues got a new PC and his Favorites and Calendar Groups are not properly synced from Exchange Online in Outlook 2016. "Favorites" only contains "Sent Items" - and not his...
spookytay's avatar
spookytay
Copper Contributor
Jan 11, 2022

BenHendricksWC 

 

It may still work for you.  I had turn off "cached exchange mode" for all my users as a temporary work around to get things synced across all users.  I had to turn it back on to do the fix.  If your users have it enable, which I assume they do, it may still work.  Just skip the step of turning it back on.

spookytay's avatar
spookytay
Copper Contributor
Jan 12, 2022
Well that didn't last long. All users are starting to get the issue again. Fix only worked for about 8 hours it looks like.
  • Pete_Rowell's avatar
    Pete_Rowell
    Copper Contributor
    Feb 08, 2022
    I have been having this issue with a customer who use public folders for capturing certain incoming and outgoing emails (two separate folders) for the previous 6 months.
    This issue stared at the very end of last year for them where the public folder favourites would suddenly stop syncing new emails.
    We have done some troubleshooting and it seems that the folders sync ok until an email in one of these folders is marked as read, then it stops syncing immediately.
    I can replicate this issue off site with different accounts.
    Looking forward to somebody finding a fix for this as we can't keep removing the cache and favourites and then re-adding them due to Outlook killing their devices while it catches up again.
    • MartinHolstDk's avatar
      MartinHolstDk
      Copper Contributor
      Mar 09, 2022

      Sorry for having been absent from the thread...

      My original issue was only with shared calendars (meeting rooms, colleagues etc.) that users had added as favorites.

      In conclusion it seems that there was an issue in late 2021, which broke sync with existing favorites from Exchange Online to Outlook Desktop Client.

      However newly created Calendar "Favorites" seem to sync OK.
      So the only workaround for us is currently to reset favorites (Outlook.exe /ResetNavpane) - and then recreate favorite lists.

      EDIT: ...and now I see that the issue has also been reported "fixed" in the other thread previously mentioned... 🙂
      https://answers.microsoft.com/en-us/outlook_com/forum/all/synchronization-issue/3634a08e-7495-4010-a599-63ce4693f5fe?page=6


      Best regards
      Martin