I have just set up Exchange 2013 on Server 2012 R2 and I am trying to replicate a simple item we had set up previously with Exchange 2003.  We used to have a resource calendar set up as "Time Off Calendar".   Everyone was able to open that calendar up in Outlook and add things such as "Dentist-2pm-3pm" and then designate their color on the calendar.   It enabled staff to see for example that Dan, who was blue was gone at this time this time and this time.   Well after spending more time than I should have to at it, I cannot get the permission to set to set those Category colors, nor can I add category colors, nor rename them.   I have granted my account "Full Access" use the Cmd line command grant full permission, as I found out you cannot do that through the EMC. 

Do I need to provide an email address to "timeoffcalendar"?  Any help would be appreciated, as all of the non-tech folk in the office believe it is the end of the world without this color coding.

Hi,

I suggest we can create a shared mailbox in Exchange 2013. Then assign mailbox full access permission to the client users.

The client users can open the shared calendar in Outlook and create calendar items with Category colors. About creating shared mailbox, please refer to:

https://technet.microsoft.com/en-us/library/jj150570(v=exchg.150).aspx

Regards,

Hello.
1. Spread the standard categories, you can through GPO or template through Outlook.

Create and assign color categories

Outlook 2013
HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\15.0\Outlook\Preferences
DWORD: SendPersonalCategories
Value Data: 1 to keep categories on sent mail, 0 to not include categories

Outlook 2010
HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\14.0\Outlook\Preferences
DWORD: SendPersonalCategories
Value Data: 1 to keep categories on sent mail, 0 to not include categories

Outlook 2007
HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\12.0\Outlook\Preferences
DWORD: SendPersonalCategories
Value Data: 1 to keep categories on sent mail, 0 to not include categories

How to share color categories for Outlook 2010

2. You want to allow to pass the category

3. Add-MailboxFolderPermission cmdlet in Exchange 2013

Add-MailboxFolderPermission "User_01":\Calendar User "User_07" AccessRights <Editor,Owner,PublishingEditor,PublishingAuthor,Author,NonEditingAuthor,Reviewer,Contributor>

All-

Thanks for the assistance with this matter.   I guess I need to go back to school to learn 2013, after knowing 2007 so well.   I am sort of surprised with how much fiddling you have to do with reg-editing things.

Again thanks for your time.

Richard