O365: How to administrate the room mailbox subject to be available through EWS

If you are using the Flowscape system with O365 you can configure the system to show the meeting subject instead of the organizer of the room bookings. This is done only in your O365 administration, and no configuration is needed in the Flowscape system. See instructions below for how to configure this. 

Please note that if your system is already showing the subject and you want to change it to show the organizer, you can follow the below instructions but instead set the parameter "-AddOranizerToSubject" to "True" and "-DeleteSubject" to True. 

More info can be found at: https://stackoverflow.com/questions/24446558/when-retrieving-an-appointment-with-ews-the-subject-contains-the-organizer-name

• Open the command line in "Run as administrator" mode.
• Enter: powershell.exe
• Connect to Office 365 powershell session: https://technet.microsoft.com/en-us/library/jj984289%28v=exchg.160%29.aspx?f=255&MSPPError=-2147217396

Set-ExecutionPolicy RemoteSigned
$UserCredential = Get-Credential
$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic -AllowRedirection
Import-PSSession $Session

• Update mailbox like this (MailboxIdParameter is the room e-mail):

Set-CalendarProcessing -Identity <MailboxIdParameter> -AddOrganizerToSubject $false -DeleteSubject $false

• Disconnect to the remote PowerShell session

Remove-PSSession $Session

More: 

https://technet.microsoft.com/en-us/library/dd335046(v=exchg.150).aspx

https://docs.microsoft.com/en-us/powershell/module/exchange/set-calendarprocessing?view=exchange-ps

Limitations

There is currently an limitation with displaying Subject when a meeting is directly created on a Room Panel which is configured to display subject.

When an instant booking is created on the Room Panel we will only return the "Organizer name" instead of the subject. This is because we do not know if the Room is configured in Exchange to show subject or not. The result will be that the name on the meeting will first show the organizer name for a few seconds before being updated with the actual subject.

A solution to this problem is to have the same user display name on the booking account (configured in portal) as the subject (also configured in portal).