Unable to sync Calendar App after iOS 18 update

Hello Community.

I'm having issues with my iOS calendar app. Since the iOS 18 upgrade many of the events in the native calendar (including Outlook, Google, etc.) are not syncing. I've nearly missed meetings and appointments, because when I open the apple native calendar app half of them are not visible. Then, I have to go into the Outlook and Google work calendars to see missing appointments. Even some events in my apple / person calendar are not present on my apple iPhone 14 Pro Max and new iPad 11 Pro. Flipping through multiple apps to find appointments and events is definitely inconvenient, confusing, and disconcerting. This is very disappointing. Apple, please fix it before the arrival of my iPhone 16 Pro Max!!

[Re-Titled by Moderator]

iPhone 14 Pro Max, iOS 18

Posted on Oct 3, 2024 10:09 PM

Top-ranking reply

jasonfromdayton

Level 1

14 points

Posted on Oct 9, 2024 10:37 AM

Any updates on this? Same issue on my iPhone 16 pro max. Have done everything possible with corporate IT, and I’ve reset the network settings on iPhone. Exchange calendar still does not sync with iPhone native Calendar or third party apps. Agree that is difficult to keep 2 calendars without double booking or missing meetings. Frustrating since this is a new problem that I haven’t had in the 8-10 years using the same setup.

This is clearly a widespread issue, reading comments on multiple sites (here, Reddit, Microsoft).

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32 replies

Nov 5, 2024 2:56 PM in response to aholzsager

Just looked at what you mentioned and have no verification notice anywhere. Glad you solved yours!

jdzuegel

Level 1

8 points

Nov 12, 2024 3:07 PM in response to sward5

I have this same problem with my new iPhone 16 Plus using iOS 18.1. The calendar and email update prove variable, sometime okay but if often slow to never.

Unable to sync Calendar App after iOS 18 update