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Calendar Not Syncing

My Apple Watch is not updating with changes to my calendar. It has had a few hours to update, but still shows the old time for meetings I have scheduled today. I've restarted my watch and my iPhone 6+. Is anyone else experiencing this? Is there a way to force a re-sync of calendar data between my iPhone and watch?


Thanks!

Apple Watch, iOS 8.3

Posted on Apr 27, 2015 7:49 AM

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Posted on Apr 28, 2015 8:03 PM

Yep -- that was it (I think). Unblocking it to actually sync to my watch had the unintended consequence of then triggering another issue (read: major bug) with "invitations": for some (stupid) reason, it decided to notify me for *every* unreplied invitation going back however long! So, for all those instances of repeating weekly meetings that I have not replied to, it synced them all to my watch as notifications (seemingly ignoring my iPhone preference which I was mirroring by default, which is to ignore invitations from my work calendar on my phone). Weird. So it took *forever* to eventually start showing the data (it really caused other problems in the interim; my watch was having serious problems doing anything that needed to communicate with my iPhone during that time).. but once it finally started presenting the alerts for all the previous invitations (I mean, we're talking about a hundred at least), I realized that was the problem now (flood gates = open).


So, I went back into the Apple Watch app on my iPhone (in somewhat of a panic) and edited the Calendar settings to explicitly disable alerting on invitation -- and voila! After a minute or two of waiting for it to re-sync, it seems to finally actually work!!!!!!


Thanks.

107 replies

Oct 28, 2015 12:23 PM in response to Stealt Vater

And then it suddenly stops again... for no reason. I did the same thing a couple of days ago, after updating to 2.0.1, and it fixed it... until today. Suddenly, my calendar still syncs... but it doesn't display on my apple watch's main watch face complication. User uploaded file... but then it displays when you go into the calendar app...User uploaded file... and you can clearly see that while one event is "tentative" the one occurring in :45 minutes from the time I took those screenshots (3:15pm), is clearly occurring imminently, and is certainly an event happening today (amongst others). Oh and did I mentioned that I restarted both my apple watch and my iPhone (9.1).


Why have my apple products suddenly stopped "just working," these past few years? I'm not willing to go through the unpairing and repairing (not restoring because restoring will just perpetuate the problem) again with little hope that it will fix the problem again for more than a week.

Feb 8, 2016 8:42 AM in response to Corwin63

So, I woke this morning to discover that yet again the calendar sync issue has reared its ugly head yet again. The main display only shows an event for 7pm this evening from a calendar named "Duke Athletics" which is a shared calendar hosted on iCloud. That's great, save for the fact that my main schedule is on office365 through my school. This calendar has 5 events that are all displayed within the Calendar app once you click through to it via the complication on the main display. Great, so the information is present on the watch but isn't displayed. The one thing that has changed between yesterday and today, and been a consistent problem with Apple Watch calendars is invitations hosted through Microsoft's exchange server. Any time an invitation changes, the Apple Watch loses sync of the calendar necessitating a complete restore to factory default, then a restore to a preceding point when the calendar worked. This last point is critical, restoring to a point where the calendar had already lost sync, even when you unpair/repair the Watch appears to do nothing (in my four times having to do this in the PAST SIX MONTHS!!).

Feb 22, 2016 10:35 AM in response to Plughie

Yeah, I've started following this troubleshooting procedure since it's happened a few times since my last post. 1) turn off iCloud calendar 2) restart Apple Watch and check if this resolved the issue 3) if not resolved, turn off exchange calendar (display in the calendar app, not remove the calendar from the device; this assumes you are mirroring your calendar to the apple watch) then turn off both apple watch and iPhone. 4) restart all and then re-enable the exchange calendar in the calendar app and after a few minutes it usually populates both the main calendar app and the complication on the apple watch. Not the idea solution but it appears there is a problem with how iCloud and Exchange handle calendar invites and changes to calendar events with invites. I wish this wasn't the case but it is clear after several WatchOS iterations that Apple hasn't been able to fix this issue reliably :-/

May 9, 2016 2:08 PM in response to jackinmaine

I just got an Apple Watch and had so much trouble getting my Google calendars to sync. I tried setting things up as a Google account, CalDAV, and also through alternative calendar apps. Nothing worked. I am convinced that this was all due to having access to too many calendars.


I was able to resolve this, however. I agree that the key is to link up a Google account that doesn't have a whole lot of calendars accessible to it. Not sure the limit exact, but less is more.


I have two main Google accounts: my work (where I am a Super Admin in Google Apps) and my personal account. I was trying to setup my work calendar for access. Being an admin, I have access to every user's calendar and Apple iCal was seeing this. I am pretty sure this was causing the connection to my watch to choke. Nothing was working.


My personal account is pretty clean, so I decided to try that one and it worked fine.


To get access to my work calendar, I (in Google) shared my work calendar to my personal Google account. Then back on my iPhone I included that calendar as one I wanted to download. It instantly showed up on my Apple Watch!!!


For me, I actually use the Google Mail and Calendar apps on my iPhone as my main apps. To make things work on the Apple Watch, I needed to setup Mail and iCal onto the device, but those are really just collecting the data in the background and slinging it over to my watch.

May 10, 2016 11:58 AM in response to BrianFNH

This suggestion from BrianFNH is the only one that consistently works for me. I'll explain more about "consistently" in a bit.


In the Apple Watch app, go to General -> Reset -> Reset Sync Data.

For the first 5 months of owning the Watch I never had a problem with syncing calendar events. When it first occurred, BrianFNH's suggestion solved the problem. Over the next 3 weeks the problem slowly came back...calendar events would sync but appear late. So, I have had to use BrianFNH's fix several times.

Related to this is the following. Sometimes, when I put the Watch on the charger in nightstand mode a green screen appears with the time and date. Other times, a large green battery condition screen appears. EVERY TIME I have Reset Sync Data, the large green battery screen appears when I put the watch on the charger. Then, over time, the large green battery screen does not appear and the large green date and time screen appears.

I think there is a bug in Watch OS with regard to all this. Shoudn't have to clear out all sync data on a regular basis to have the Watch function correctly.

Calendar Not Syncing

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