How to show Subject on the Room schedule Calendar rather than show busy?

Hello SuraponManeeprawat,

Thanks for your post in Microsoft Community. On Exchange Online Room mailboxes do not share calendar information by default. You will only be able to see if the Room is busy or not. To show the actual subject and name of the organizer, you need to run PowerShell command.

A. Run the below commands to connect to office 365: (Open Windows PowerShell with Run as Administrator and enter Global Admin credentials in 2nd command )

• Set-ExecutionPolicy RemoteSigned
• $LiveCred=Get-Credential
• $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell/ -Credential $LiveCred -Authentication Basic –AllowRedirection
• Import-PSSession $Session

B. Run this below command to add subject of the event in the meeting room calendar. (Once you run the below PowerShell command , it will apply to all room mailboxes in your organization, we cannot set this changes per room mailbox vise. )

• Get-Mailbox -RecipientTypeDetails RoomMailbox | Set-CalendarProcessing -AddOrganizerToSubject $false -DeleteSubject $false -DeleteComments $false -RemovePrivateProperty $false

Thanks and regards,

Ankita Vaidya