Yahoo shared calendar not syncing anymore with iPhone's calendar

The Calendar on my Phone just synced. All data from Yahoo has repopulated it.

Either Apple or Yahoo or both did something. However, my data only goes back about 6 months, as someone pointed out. I guess that is better than nothing.

I did not change my password or anything else today. I just opened the Calendar on my phone and it started jumping around and then I realized it was downloading the events. I checked and it appears completely correct.

1) I made sure my Cloud password was in sync with apple id. I did have issues with pw in the past.

2) I was still receiving partial yahoo calendar invites. My yahoo created invites did not show up on iphone. All my old meeting invites from my work Outlook or non-yahoo invites appeared. New invites were not. Starting from Sunday, June 11, 2023

3) I reinstalled Yahoo mail for a 3rd or 4th time.

4) Last, I start toggle my calendars in iphone settings last night, checking my calendar and the the missing invites started to appear and download overnight. drained my iphone battery completely (was charged 100%).

Bottom line, somebody made a code change or server change that cause the issue and did not have a team properly test. Plus courtesy change/release notification between Yahoo and Apple companies share the code change in advance. My two cent as an IT professional.

I am experiencing similar problems with my Yahoo Calendar. Even old dates have disappeared. (They are still in my online version of the Yahoo calendar, but don't get sent through to my Outlook). However for me it is patchy.

This is really annoying and a little scary as well.

I experience now the same problem where my Yahoo Calendar entries simply do not show anymore on my iphone calendar app. I removed the account from the iphone and re-installed it (several times), I checked the iphone calendar app settings to make sure that the yahoo calendar was well selected to appear.

Nothing works for me

It's now 3 days since I lost synchronization.

Can someone at Apple or Yahoo help with this ?

I spent about 90 minutes with a genius at the local Apple Store Genius Bar. He diligently tried all of the troubleshooting steps (most of which I had already tried and several of which were arguably unnecessary). After engaging another genius, they both gave up and said it would hopefully "be fixed in the next release".

BFWOT.

AA

Thanks for the update. I don't think the IOS latest version will fix it. I just upgraded my iPhone to the latest 17.3.1 yesterday, Apr 21, 2024 and the problem is still there. I really think the problem is with one of the Yahoo servers hosting the calendar function. Not all Yahoo users are affected because they have many servers for their mail/calendar systems supporting different users so thats why not all of Yahoo calendar users are affected.

Presume you meant yesterday (i.e. February 21)!

And, yep, my iPhone (17.3.1) and iPad (17.3) are both up to the latest releases (as of today).

Your hypothesis makes sense. I guess that means we have to wait for yahoo (verizon) to come up with a solution. Or at least to recognize that there is a problem.

I'll BOLO for flying pigs. ;-)

I think the problem is resolved. I just checked and my iPhone calendar and its in synch again with Yahoo. I did a few tests and added and deleted events from Yahoo calendar and it was on the iPhone calendar as well.

This was driving me crazy as well. What fixed it for me was clearing my Safari cache and website data in the Advanced area of Safari.

Setting>Safari>Advanced>Website Data> Remove All Website Data

I was able to get my calendars to sync. I changed my Yahoo password and then I had to update it on iPhone and everything is now syncing.

Exact same situation and exact same problem. Thought it was just my accounts. Wish I had a solution.

Same issue. I’ve tried every possible fix. I have an iphone 8. Wondering if that is the issue? I hope they fix it in the next update!

Thank you so much for sharing! I was also able to finally sync the calendars after changing my Yahoo password and updating it on all Apple devices

#4 was key!! Thank you! Definitely go the actual calendar on Yahoo, then enable sharing. Download the link, open it up, then select which from the drop-down menu which calendar you want to import.