iCal picks wrong calendar for invites - how do I change that?

I have the exact problem using Mountain Lion. I have my defalt calendar through Microsoft Exchange...and when people email me an invite to that exchange email address, they are now defaluting to a gmail calendar that I have also managed in Calendar. This happened when i reciently added this new gmail calendar, but didn't make it my default or anything, but now all invites are defaulting there (the events i create new default to the correct one).

I am in the same boat. My exchange calendar is my default and I have deleted all "On my Mac" calendars. I have 5 iCloud calendars listed below my Exchange calendar. Imported iCal skip over the Exchange option and attempt to open in the first iCloud calendar. Help!

I also have the same issue, as a user of both Exchange and other calendar servers. Just as the last two posts above, no matter what I do, the incoming invite gets sent to the wrong calendar if I accept it, and I can't move it to my main calendar, which is an Exchange one. This is driving me nuts!

I may have a solution or at least a work-around. Accept the appointment as Maybe instead of Accept. Doing this allowed the appointment to go to the top listed calendar (my Exchange calendar) and then I was able to Accept it outright. Good luck!

Thank you so much! I don't need any "On My Mac" calendars - this was the perfect solution for me.

I am also having this issue and haven't found a solution. All my gmail invites are duplicated on my Exchange calendar. Apple needs to fix this!

ical takes the first account mentionned in the settings/accounts. It's sorted alphabetically. I just renamed the account which I wanted as default so it was first in the order.

I have the same problem, but in my case the solution was to log into icloud and drag the calender to the BOTTOM not the TOP as suggested in other posts. (inconvenient of course)

Its a bug obviously, since OSX-preferences has a place to define the default calender, but equally obviously noone from Apple monitors these forums or anywhere else you could report a bug :-(

@apple:

Same problem.

I only have one Exchange and two Google Calendars setup.

Renamed the Exchange to appear first in Settings.

Defined the Exchange Calendar as Default.

None of these calendars appear online in iCloud, so I couldn't change any preferences there.

When I click on an ICS file in my Exchange mail account, it opens the invite in Calendar using my Google Account. When I right-click the event, I can only move it to the second Google account. When I drag the event to my Exchange calendar, the event is duplicated in Exchange (without the Accept/Reject options). From there, if I try to delete the original Google invite, I'm asked if I'm sure I want to decline the event.

Didn't solve for me using iCloud. After a long time of searching plists, settings, etc. I finally found that when I reordered my calendars on iCloud, then the meeting invite would be created in different calendars. Strangely I found that the "default" meeting invite calendar (when receiving an invite attachment via email) is stuck to go to the 3rd position on my calendar list in iCloud. Whichever calendar was third down on the list, would get the meeting. I played around for a long time reordering them, hoping it would clear out some bad setting, and hoping it would adhere to either the default calendar setting or the alphabetical rule or the first in the list rule...but in the end, I just put the calendar I wanted as the default meeting invite recipient in the 3rd slot.

when having all calendars in icloud, running ML, moving the desired calendar to the BOTTOM of the list in icloud solved my problem. thanks!

I have same issue - Exchange work calendar invites are automatically accepted from mail.

My exchange work calendar is NOT iCal, so there is no way to move it to the top of the list.

The ONLY workaround I've found is to accept them from iOS device (they work perfectly, and update appropriately).

I changed the setting in mail to "Add invitations to Calendar", set to 'never'.

As long as Calendar has the exchange account set to refresh, they will show up (changes too).

Crappy workaround - CMON Apple. Fix this, please!!!!!!😝

I'm having the same issue - when I accept an Exchange invitation in Mail, a duplicate event is created in my Gmail account in Calendar.

I've filed a bug report with Apple (#: 17434464). If any of you have the same issue, please file a bug report at bugreport.apple.com - contrary to popular belief, every single one of these reports is read. The more they get, they more likely an issue will be fixed. Forums are not the best way to report bugs, other than to verify that others have the same issue. I reported the issue under 'Mail' as opposed to 'Calendar' because it appears that's where the issue is.

Good luck!

Hello, having the same problem. Invites going to a shared google calendar with no way to move them. I reported to Apple as a bug. Amazing that this has been an issue for people for 3 years!

Somehow this is still not fixed. Although default calendar is set to Exchange, we invites are added to the first iCloud calendar. I can reorder iCloud calendars. iCal always takes the first iCloud calendar, but ever the exchange.

If I go a step further, I can also disable all iCloud calendars. If I double click add a new calendar invite, nothing happens!

But at least there is a workaround with OS X 10.10. I can add a new invite to iCloud and move it to exchange. That was not possible with 10.9.