I have opened a few shared calendars and I obviously have tried to do something in the shared calendar I didn't have permissions to do.

Now I CONTINUALLY get:

Error
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Permission Error. Changes to the event "Ask the expert session - Microsoft" could not be saved because you do not have the appropriate permission.

Details
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This appears every minute!

The only way to stop the error is to close down the shared calendar which I can't do. I need it.

Also why on earth when you have permissions to view a person calendar does Outlook 2011 think I can send mail in their behalf. Doesn't make sense.

PLEASE get some of the Office 2010 devs to work on Office 2011. It is a crippled product.

Cheers

Wayne
I have been fighting this issue over the last few weeks for a client and I am out of idea on how to fix this.

First, some background on this client:
* they have ~50 users, all using Mac computers on a pure Mac network
* the shared calendar is from a local exchange server on the network using "user name and password" authentication. 
* the directory service logs in with their Exchange account
* there are no delegates
* there are no digital certificates used
* there are no local accounts.  All users log in via a network login.
* only one user is experiencing this error
* I have rebuilt the users Outlook database multiple times.  Doing so will correct the issue for a day, then the shared calendar disappears again.
* I have reinstalled OS X from a USB thumb drive.  This had no effect.
* I have removed and reinstalled MS Office 2011 for Mac. No effect.
* I have not erased and recreated the users network account nor have I recreated the Exchange account yet (this is my last resort)

Basically the user states that only their calendar is affected.  Their e-mails both sending and receiving work fine, even after the calendar disappears.  They state that they will be using Outlook, leave it open and use a different program (of which they have nothing different installed from their co-workers) or just be creating/reading e-mails and when they check their calendar, the company/shared calendar has vanished.  

Rebuilding the Outlook Database on the default ID will NOT correct this issue.  Finding an older "backup" ID, setting that to default and then rebuilding it allows the user to see their calendar and the Office Reminder window.

I am at a loss here.  Any help is greatly appreciated.