Outlook Calendar changes not showing up in Google Calendar

Unfortunately, I have to join this thread because I'm having the exact same issue. In Google Calendar, for years, I subscribed to my Outlook Calendar via a URL (pointing to a .ics file) and it worked perfectly. Recently, events that I added to my Outlook Calendar stopped showing up in GC (regardless of where they were created: desktop Outlook app, Outlook web app, Outlook mobile app.

For GC on mobile (Android), there is a workaround, by enabling the option "sync calendars" in the Outlook app (under settings, and in the account info of the (outlook/office365) mail account). By doing so, the outlook calendar also shows up in the GC mobile app. But this is by sharing local files (I presume).

So the issue remains for the GC web app: there, new events are no longer showing up. Is asked the IT department if they changed policies, but apparently not. in GC web app, I tried removing/unsubscribing the OC, and re-adding it, but without success. Even stranger: I added the OC twice (once with a https URL, and once with a webcal URL), and they give different results.

The strange thing is that if I use the URL of the OC (so the https one I use to subscribe to in GC), I'm able to download an .ics file where the last modifications are present. So the info is there, but doesn't show up on the GC web app.

Any ideas/suggestions/tips/thoughts are more than welcome. As said by J Backus, I can't rely on only checking my GC, but I need to check two apps to have full view on my agenda; this is ridiculous. I hope there is a solution to this issue.

Jeez - no way. I am having the probs described...OC new or amended events not rocking up in GC (ics). This is going to kill either OC (work) or GC (social). It used to work perfectly. I even think that Microsoft removed the automation tool that used to let you push OC changes across to GC. This is a nightmare.

Microsoft have not answered. I have a solution... i unlink then relink every calendar every day, Microsoft don't seem to care.

I would love to hear the answer to this general issue. For years I've had multiple calendars sync'd into GC w/o issues. But lately changes in Outlook 365 or Teams are takings days to update to show moved meetings or new meetings. I want to be able to force and update/re-sync but don't seem to be able. At this point I've lost faith in just looking at my GC and need to always view Teams/MS app for confirmation of free time and meetings.

I am having a similar problem with multiple users at my company. I was able to narrow this issue down to Samsung phones. Pixel phones are not experiencing it. The iPhones we have are not using Google calendar and do not experience it.

We use Outlook 2016 with on prem Exchange 2013 servers. Not all events are syncing to the Google calendar.

Some are tasks, some are reoccurring tasks and calendar invites, some are single calendar invites. Some are new, some are old. It's very random.

These phones are managed by Intune company profiles. We have removed company portal, wiped the devices, reset them up and get the same results