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mcoppock Author

Level 1

17 points

Calendar - Exchange sync issue

I'm having a problem with Calendar and Exchange syncing (my company uses Exchange 2010), with the following error:

"Calendar can’t save the event “Item title” to the Exchange server.

The account "Exchange" currently can’t be modified. To discard your changes and continue using the version of your calendars that’s on the server, click Revert to Server."

The options on the dialog box are:

Revert to Server

Try Again

Ignore

Syncing in general is working, i.e., items added in either system show up as they should. And, I'm not actually changing anything on the items on my MBA. The error pops up apparently randomly--so far, at least, I haven't been able to identify a pattern. I've checked credentials, which seem to be correct, and I've verified that time zone settings are turned on as I think they're supposed to be.

Any ideas?

MacBook Air (13-inch, Mid 2012), OS X Mountain Lion

Posted on Aug 3, 2012 12:42 PM

Top-ranking reply

furyg3

Level 1

16 points

Posted on Aug 10, 2012 12:28 AM

I also experianced this problem after an upgrade to Mountain Lion.

I think it has to do with the fact that in Lion the account settings were managed from iCal, and now they are managed by the OS?

Anyway I finally solved it by:

Open Calendar (formerly iCal).
Go to the Calendar menu and select Preferences.
Select the Accounts tab.
Remove the Exchange server account which is giving you the error messages. This calendar will be removed from the Calendar app.
Go to System Preferences and click on the "Mail, Contacts & Calendars" pane, find your Exchange server account, and check the "Calendars & Reminders" option to re-enable your calendar.
Your Calendar should now sync properly.

I had to do this for all of the accounts I had set up in Calander, and haven't had any problems since.

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145 replies

kosmalak

Level 1

0 points

Oct 14, 2013 12:18 PM in response to mcoppock

Option 2, for people that like getting down to the actual details, rather than using the UI:

http://www.nutmeghelp.com/index.php?pg=kb.page&id=110

Hope this helps.

Oct 29, 2013 8:17 AM in response to mcoppock

I'm really disappointed of Apple. It's incredible that they are unable to fix this issue even in a new OS version (Mavericks). I'm still having issues with Calendar.