Hi all,

On my Exchange server 2013, I ran this command to allow transport categories: Set-transportConfig-ClearCategories: $False.

I then verified and it is set to False.

On the clients, I set these 2 registry entries by GPO and verified that they were there for the users.

[HKEY_CURRENT_USER\Software\Policies\Microsoft\office\14.0\outlook\preferences]
"AcceptCategories"=dword:1
"SendPersonalCategories"=dword:1

Now the owner of the calendar sets colors, only some users see them, and some of these see different color than what was set; and the owner doesn't see colors other users put in...

What could be missing?

Hi,

Are these customized categories that do not work? Since Outlook 2007, color categories are stored in the users default mailbox storage location. If users have enough permissions on the shared calendar, the expected behavior is to only see the categories but not the colors. For default color categories (such as Blue Category, Green Category), you only need to have at least Reviewer permission on the shared calendar to make it visible to the users. However, if you want to make also the colors visible for other users there are two methods to achieve this:

Method 1:

Add the shared mailbox as an additional mailbox and provide Reviewer permissions on the Calendar.

Method 2:

Add the shared mailbox as an additional Exchange Account.

For detailed information, you can have a look at the following blog article:

http://blogs.technet.com/b/outlooking/archive/2012/02/03/how-to-share-color-categories-for-outlook-2010.aspx

Hope this helps.

Regards,

Steve Fan
TechNet Community Support