We are trying to create shared calendars for Exchange 2010 to be shared among departments and various personel. We can created a mailbox resource called sharedservices and are we created a group called sharedservicescalendar. Our goal is to allow any user in this group to be granted permissions to the calendar to add appointments but not delete them. We do not want to launch a power shell command for every new user who needs the group. We know the powershell comands
get-mailboxfolderpermission -identity sharedservices:\calendar
add-mailboxfolderpermission -identity sharedservices:\calendar -user UserA -AccessRights Contributor
will work for individual users. When we replace the userA with sharedservicescalendar we get an error
The user "SharedServicesCalendar" was found in Active Directory but isn't valid to use for permissions. Try an SMTP address
+ CategoryInfo : NotSpecified: (0:Int32) [Add-MailboxFolderPermission], InvalidInternalUserIdException
+ FullyQualifiedErrorId : 9DC52564,Microsoft.Exchange.Management.StoreTasks.AddMailboxFolderPermission
It sees it in AD but in couldn't pull. We let it sit overnight hoping it was a replication issue and no luck. I am trying to figure out what we need to do to make this work and is it possible to switch -user to another switch that could allow the group to work.