How to Fix Event Titles for Meeting Room Calendars in Office 365 and Exchange

 

Why is this happening?

This is the default behavior for Exchange Web Services and Office 365. It occurs because two configuration parameters, AddOrganizerToSubject and DeleteSubject are set to $True.

By default, your resource mailbox won’t show your Meeting Subject. Instead, it replaces this with your organizer’s name. This occurs for privacy reasons, but it’s only the default. Most organizations opt to see meeting subjects instead.

How to fix it?

1. Install the EXO V2 module and connect to Exchange Online through PowerShell to modify. Please refer to: https://docs.microsoft.com/en-us/powershell/exchange/connect-to-exchange-online-powershell?redirectedfrom=MSDN&view=exchange-ps
2. After connecting to Exchange Online successfully, input this command: Get-PSSession | ft ConfigurationName,CurrentModuleName
3. Input command: (Get-Module -Name <CurrentModuleName>).ExportedCommands | ft key
4. Input command: Get-Mailbox -RecipientTypeDetails RoomMailbox | Set-CalendarProcessing -AddOrganizerToSubject $False -DeleteSubject $False -DeleteComments $False -RemovePrivateProperty $False