Calendar Error: The server responded with “400” to operation CalDAVWriteEntityQueueableOperation.

barcaroller

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Dec 4, 2013, 8:10:12 PM12/4/13

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This problem started happening only last week. I have a Google
Calendar account attached to Calendar (OS X Mavericks on a MacBook
Pro). When I used to add an event on my Mac, it used to add it locally
(and iCloud) and then automatically update Google Calendar. Now,
however, I've been getting this error:

The server responded with “400” to operation
CalDAVWriteEntityQueueableOperation.

I've googled this to no end, and tried all suggested fixes, but nothing
works. Does anyone know what is causing this error?

Message has been deleted

allis...@gmail.com

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Feb 4, 2014, 7:29:37 PM2/4/14

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I have the same problem. Help! I tried unlinking all my Google accounts from the Mac then restoring them and it worked for a few minutes before rebugging.

lmar...@gmail.com

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Feb 25, 2014, 2:43:53 PM2/25/14

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I am also seeing this issue...

The request for "Enter Email Addresses ....

The server responded with
"400"
to operation CalDAVWriteEntityQueueableOperation.

martyn....@gmail.com

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Mar 3, 2014, 11:38:40 AM3/3/14

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I have the identical issue

martyn....@gmail.com

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Mar 3, 2014, 11:45:12 AM3/3/14

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On Wednesday, December 4, 2013 7:10:12 PM UTC-6, barcaroller wrote:

I finally fixed my instance of this problem: CalDAVWriteEntityQueueableOperation 400 error on MacOS. I had a user on my google domain that years ago established a recurring calendar event which years ago I accepted. Subsequently that user left the company and I deleted their google account on our domain. However the calendar request they had established as recurring kept sending the same request out to my calendar. When I tried to delete the event, I received the CalDAVWriteEntityQueueableOperation error. To finally fix this, I had to log onto Google Calendar through my browser and delete the recurring calendar event. Seems to be fixed.

cvi...@gmail.com

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Apr 9, 2014, 7:25:13 PM4/9/14

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Thank you!!!!!!!

Pippa

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Jun 26, 2014, 7:30:45 AM6/26/14

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I've also been having this error message for a few weeks. Seeing as my contacts also "multiplied" in Google to the tune of some 24'000 with several screen pages for each entry I originally had, I can only deduce it was an incompatibility issue between Mac and Google.

Before, I was always able to enter dates on iPad, iPod, iMac, PC, etc. seamlessly using a variety of applications, whether directly in Google Calendar on PC or iCal, Calendar or Calendars 5 by Readdle that I ended using instead of Calendar when the latter started bugging. Then when Calendars started duplicating entries and they weren't able to fix the problem, I went back to the updated version of Calendar again and it worked fine for a while. Now it's misbehaving and displaying this message on my iMac:

The server responded with
"400"
to operation CalDAVWriteEntityQueueableOperation

It's difficult to know which calendar memory I should delete to try and alleviate the problem. Seeing as I have calendar entries that go back to early 2000, I'm unwilling to get rid of my past to help my present. So, I continue to have these bugs. It doesn't make me more attached to one constructor. To the contrary, you end up being suspicious of all. Apple is just as bad as Microsoft was in the past with Entourage which created tremendous duplicata of info at the time.
Any ideas as to how to simplify life?

farshadk...@gmail.com

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May 15, 2019, 5:17:12 AM5/15/19

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I have the same issue.