Article ID: 974640 - View products that this article applies to.
Consider the following scenario:
You do not have sufficient permissions to complete this action. To obtain the required permissions, contact the owner of this mailbox or technical support for your organization.
An internal exception that occurs in this scenario that causes the whole Calendar view to fail in OWA.
To resolve this problem, install Update Rollup 1 for Exchange 2007 Service Pack 2.
For more information about Update Rollup 1 for Exchange 2007 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/971534/ )Description of Update Rollup 1 for Exchange Server 2007 Service Pack 2
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 974640 - Last Review: November 19, 2009 - Revision: 1.0