Delete Outlook 2010 Shared Calendar items

So my scenario is i have Windows 7 PC's running Office 2010 and XP machines running Office 2007 (soon to be upgraded). However the users on Office 2010 cannot delete appointments in the shared calendars.
you get this stupid error that means nothing:

Some items cannot be deleted. They were either moved or already deleted, or access was denied

This error may be the result of trying to delete more than 4,000 messages at one time.  Outlook can delete no more than 4,000 messages when it is working with a server message store.
To avoid this error, delete fewer than 4,000 messages in a single operation.
It is also possible that you do not have the appropriate permissions to delete messages. If you need to delete content from a folder owned by someone else, contact the owner of the folder to obtain the necessary permissions, or have the owner delete the content for you.

It’s a simple fix for me.
Hold SHIFT and then right click , click delete , release SHIFT and click yes
or just click once on the item hold SHIFT hit DELETE key, release shift click yes.

Took me a couple of days to find this hope it helps others.


  1. This is a bit old, but someone in my office pointed me at it because they were having the same problem and found that your workaround worked for them.

    In our case, this is simply because we have the following group policy option set:
    User Settings\Administrative Tools\Microsoft Outlook 2010/Outlook Options/Delegates::Store deleted items in owner's mailbox instead of delegate's mailbox

    By default when deleting an item from a shared folder, the item goes to your own Deleted Items folder. If the above policy is set, it goes to the item owner's Deleted Items folder instead, and in this case the person doing the deleting simply didn't have at lease Publisher access to the item owner's Deleted Items.


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