BUT -- if you use FULL ACCESS instead of Impersonate, the current download-able version works like a champ for this.
To try this out:
· Provision a service
account (say, "exsu") that is NOT an Enterprise Admin
o Set impersonate RBAC for that account
§ new-ManagementRoleAssignment -Name:_suImp8Exsu
-Role:ApplicationImpersonation -User:'exsu@cod.sumatra.local'
o Try to do an insert for a user AND
o For resources "cr101b" or "room 222"
Results should not be good, but NOW....
·
Add fullaccess to
that service account
o Get-Mailbox -filter {isResource -eq $true}
-resultsize unlimited | add-mailboxpermission -user exsu -accessrights
fullaccess -InheritanceType: All
o Add holidays for that room
Quick, simple, and executable without a lot of prep time.
Now use PowerShell to set up your session: $LiveCred = Get-Credential This will prompt you for your admin credentials on Office 365. Follow this with the next two commands: $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell/ -Credential $LiveCred -Authentication Basic –AllowRedirection and Import-PSSession $Session 
You are now ready to rock and roll by changing your “room” into a ROOM. This PowerShell command will now transform the ID into a Room. Set-Mailbox room222 –Type Room Check this by trying to add it in Outlook:
And we’re certain that it is now behaving like a room! Since you’re here you might as well also configure the room as you wish. My preference for daily use (though for a calendar migration you’d want to turn OFF AutoAccept): Set-CalendarProcessing -AutomateProcessing:AutoAccept -DeleteSubject:$FALSE -AddOrganizerToSubject:$TRUE -AllowConflicts:$TRUE -EnforceSchedulingHorizon:$FALSE Wash, rinse, and repeat for any other resources you need. When done, be a good doobie and disconnect PowerShell from Office365: Remove-PSSession $Session
