Sharing Office 365 Room's availability to external user

Occasional Contributor

Dear all friends, and experts.,


My customer they want to share a meeting room to their partner.

What I did as below:


1.I created a meeting room and named test room 01

2. PS] C:\>Get-Mailbox "test room 01" | Set-CalendarProcessing -ProcessExternalMeetingMessages $true

3. How to test ?, as my understand : I need book this room from a user from outside, but, how to to that, please help me, and give some advises on my case.


Thank you so much.,

Lee Nguyen 


Thank you so much.,

Lee Nguyen

2 Replies
Hello Lee,
you can create a new O365 tenant for testing purposes.
But you can test it aloso with any other external email address like, Gmail, Yahoo, etc...
This parameter set to true only applies to whether process the requests from users outside the exchange org , not sharing itself:

Regarding sharing:

Hope that helps!