watchOS 5 and Outlook 365 Calendar not syncing

And I just got six notifications for one event (from my iCloud calendar). Meanwhile my employer says that the Microsoft patches are all complete for our institution, but I still can't see most events from Office365 calendars on the watch (though I do get those alerts) - so this seems to be unrelated to whatever other issues Microsoft was working on.

Meanwhile, everything is working fine. I didn't change anything at all, but now the syncing between exchange calendars and Apple Watch running Watch OS 5 is working flawlessly. I had 24me installed, which worked fine as well, but was able to de-install it on the Watch at least, now that the syncing works again.

so, whoever did anything to resolve the problem, thank you.

ok I have also opened a case and am with Apple senior advisor. If people can post their CASE ID in here so they all can be connected together. The advisor told me it would help. It is a very hard problem to pinpoint as there are only a few people having this problem.

my case id is 100649898318.

My case is 100652226940.

This weekend I had removed calendars from my iPhone and did the swipe down to refresh. I then wiped the watch and started over for like the 5th time.

When I started the watch back up, old data reappeared for calendar entries no longer on the phone. I wonder if the problem lies with IOS not WatchOS.

Senior advisor has a call back scheduled for late this afternoon.

Unfortuately this didn’t work for me- the calendar entries seem to remain in CalMate when switching back (but disappear if I force quit it and restart). No orphans and no non-functional calendar invites. :/

I've tried to follow your instructions exactly, but when I task switch back to calmate I always see all my normal exchange events (after turning off the exchange calendar and deleting events). If I close and reopen calmate everything disappears. Am I doing something wrong?

I appreciate the effort. Intermittently through rebooting and syncing I can get some calendars and a handful of upcoming exchange events to sync, but never more than a few. Once those events pass nothing will be listed upcoming until I remove calendars, restart the watch, and resync.

I'm having the exact same issue, I'm relieved it's not just me. Just like everyone else, I've tried wiping synced data/resetting my watch multiple times now and nothing seems to fix it. I have two Office 365 accounts and both are afflicted with whatever is causing this. This is a pretty significant bug; I rely heavily on my calendar and my Watch to show up on time.

Same story for me, and same results from trying the various suggested fixes. Deleting calendar entries to try and correct is not an option -- I have maybe hundreds of meetings in my Outlook calendar, many recurring. My loss of productivity would be unacceptable. Apple please address this ASAP as it is significantly diminishing the value of my Apple Watch right now. 😟

The next tier of support beyond chat is supposed to call me tomorrow to troubleshoot. Should I keep the appointment? It doesn't seem like they'll figure out anything beyond what's already on this thread. Will them talking to me and confirming the problem help the case of getting a fix?

My Case: 20000004766019

Apple will call me next week to troubleshoot before sending it up to engineering. They requested I open a helpdesk ticket with my Exchange admins... I am 99% sure they will punt it back to me (and Apple) since the calendar events sync fine with no problems in iOS. It is only from there to the watch that this breaks, i.e., I cannot see how this is an Exchange issue versus the watch miss-handling certain calendar objects. Please fix it ASAP Apple!

I am beginning to think the problem is in iOS12. Outlook-app shows sometimes only the number of unopened not-Exchange mails. And after opening the app, the number in the badge turns to the correct number.