Question

How do I use a Security Group to process calendar requests for a Room or Equipment mailbox?

Overview

The following instructions will require uConnect/Office 365 administrative access and knowledge of PowerShell commands.

Answer

If you would like to use a Security Group to process calendar requests for a Room or Equipment mailbox in Office 365 you will have to use the following PowerShell cmdlet:

Set-oCalendarProcessing -Identity [resource UPN] -ResourceDelegates "[security group]"

Unfortunately there is no way to do this through an administrative GUI for Office 365 mailboxes.