You'd think that setting rooms up in Office 365 would be a simple matter of going to the Office 365 Admin console, expanding Resources, clicking on Rooms and Equipment and then using the Add Button This works but it doesn't do everything. If you want your rooms to appear in the Room List (and to show available times), you'll have to use PowerShell to put them there. Finding Answers So... I spent a while trying to find the answers without a whole lot of luck. I think that coming from the Notes/Domino world and not being familiar with the outlook terminology hindered me a bit in this regard. In any case, big thanks to IT for Dummies btw whose page called " Create Room List Office 365 " made very little sense to me but helped me to explain to Microsoft Support what it was that I was looking for. BTW: Microsoft support can be reached via the Support and then Service Requests options in the Admin Center. I've found their support to be excel