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

pstage

Level 1

19 points

Posted on Nov 12, 2024 5:03 AM

I had a similar issue, but a little different. Doing a search would only show upcoming events that I’ve recently entered. I could not search for past events …. but all past events I’ve entered DO show on my Gmail calendar. I did not have a problem searching past calendar events prior to V18.1. After many frustrating days trying to fix this…. I found something that DID work for me this morning. Here’s what I did on my iPhone 16 Pro using V18.1

(Note: I use my Gmail calendar as my default)

• Go to “Settings”, scroll to the bottom and select “Apps”

• Scroll to Calendar and select

• Scroll down to Default Calendar and select

I changed my default calendar from Gmail to iCloud Calendar… then select <Back (Top Left On Screen)

• I closed “settings”, then opened my Calendar and verified my Gmail calendar entries are no longer shown

• I rebooted my iPhone. Then I changed my calendar back to my Gmail account

• Go to “Settings”, scroll to the bottom and select “Apps”

• Scroll to Calendar and select

• Scroll down to Default Calendar and select

• I changed my default calendar back to Gmail.

I opened my calendar and it started populating all my calendar events. And now I AM able to search past events in my GMail calendar. Hopefully this will continue to work for me… and maybe my steps will assist with others having this same problem.

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Nov 21, 2024 2:20 PM in response to sward5

I finally figured it out! Go to settings- scroll to bottom and click on Apps. Click on the Calendar app. Click on Calendar Accounts to show all the accounts you have synced. Click on the first account that is not synching correctly. Toggle off the calendar. Let it delete (don’t worry it will just unsynch it). Then back out of settings. Repeat with all accounts that aren’t working. Restart your phone (not sure if necessary but I did this). Then go back into settings-Apps-Calculator-Calculator Accounts- and turn back on all the calendars for the accounts you turned off. They will take a bit to synchronize but worked perfect. FINALLLLLY!!!

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Unable to sync Calendar App after iOS 18 update