ical The server responded: “403” to operation CalDAVWriteEntityQueueableOperation., ical The server responded: “403” to operation CalDAVWriteEntityQueueableOperation.

Last resort, but it's worked for me: delete the problem calendar. Yes, just delete the darned thing! Fortunately for me it's one that I could easily set up again and rekey in relevant dates, but it was worth it to get rid of a barrage of error messages

I found the same problem. It happens when a person with Outlook on Windows sends a meeting invitation, and then simply tries to reschedule it to a new time. Happens EVERY time. The move DOES work in ical. However the error " The server responded: “403” to operation CalDAVWriteEntityQueueableOperation" Occurs when the move is attempted to sync with ICloud. THis is most frustrating and it is an ICLOUD problem.

Apple is not that concerned about it? Well, I suspect I won't be able to use ICAL for BUSINESS as my meetings are re-scheduled all the time. Between the lackluster post Steve Jobs Apple, and the problems, I am seriously considering going back to Windows. On a Hypervisor I can run WIN 7 and Win 8. Outlook this simply is not a problem. Plus Real Office on Windows does not have the limitattions of Office on a Mac.... such as the inability to create a Pivot Chart from a Pivot table in Excel, which is one of the most common things one does once they create a pivot table!

Always paying more for less powerful hardware, it just isn't worth it anymore. I suppose Apple's iCAL was never meant to run in a business setting... Ironic how the entire publishing, advertisement, bloggers are all using mac's. But I suppose they don't have people with Windows sending and moving meetings, or they don't sync with Icloud.

BTW... You can set your Calender to sync with a Caldav server and not Icloud, and this problem goes away.

But what a PIA that Apple just can't get synchronization right. Sad.

If it's a problem syncing with google calendars the solution may be resolved by

changing the login name on the calendar account

(i.e. 1.backup, 2.remove 3.re-add with the right extension

from ..@gmail to ..@googlemail or the right way round for your google calendar account)

may help.

posted in more detail on this thread

https://discussions.apple.com/thread/4274995?answerId=22668698022#22668698022

rob0mitch

I had this problem, and found this easy fix for a dumb mistake... make sure your Google account is added to Mail, Contacts & Calendars under Preferences, and make sure that Calendars & Reminders is checked for the Google account. Then verify that your Google account is listed under Accounts in Calendar->Preferences.

To reiterate, this error happens to me when:

- Someone sends a calendar (.ics) attachment in an email from Microsoft Outlook. The first time an appointment is made, Apple Calendar inserts the appointment correctly and synchs correctly with the server.

- Now that same someone changes the date (or any other detail) in the appointment and sends out a second email with a second .ics attachment. Now Apple Calendar initially moves updates the appointment correctly, but when the server tries to synch, bam, there comes the error message.

Work around.

I have found that I can work around this by:

1. Click on "Revert to server".

2. Delete the original appointment (without informing the sender)

3. Double click on the attachment in the email to create a NEW appointment with the update .ics.

And now it works.

But it can take Apple YEARS to recognise and fix this is beyond me.

I found an easy solution. I was getting this on mine and after months of trying to delete the events I was finally able to:

1. Create a new " Temp" calendar (at the left side)
2. Edit the event and change it to the new "Temp" calendar
3. After it's all synced, delete the entire "Temp" calendar.
4. Bingo!

In the Advanced tab of the iCal Preferences you can choose not to automatically retrieve CalDAV invitations from Mail.

YES! YES! YES! THIS IS EXACTLY WHAT HAPPENS! COME ON, APPLE, FIX THIS! I MEAN, REALLY!

IT IS WHEN SOMEONE SENDS AN UPDATED CALENDAR INVITATION THAT IT HAPPENS TO ME! ANNOYING AS **** AND CLEARLY SOME GLITCH IN THE PROGRAMMING. FIX IT. FIX IT. FIX IT NOW.

BTW, are you able to do this on an iPad or iPhone? I am able to do it from my MacBook Pro, but not sure I've tried it from my mobile devices...

To reiterate, this error happens to me when:

- Someone sends a calendar (.ics) attachment in an email from Microsoft Outlook. The first time an appointment is made, Apple Calendar inserts the appointment correctly and synchs correctly with the server.

- Now that same someone changes the date (or any other detail) in the appointment and sends out a second email with a second .ics attachment. Now Apple Calendar initially moves updates the appointment correctly, but when the server tries to synch, bam, there comes the error message.

YES! Mavericks has fixed this... unbelievable! Hooray!

It only took Apple a couple of years, but this issue is officially history on my machine.

This is not correct, I still get the same error with Mavericks!

I also still have the same issue after the new OS. COME ON, FIX THIS, APPLE!

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