1. To manage your meeting room with Joan and Office 365 you will first need to create a Room resource in the Office 365 Admin center.
To create a Room resource in Office 365, log into "Office Portal" as an Admin user > Admin > Resources Rooms & equipment and click on Add.
The same room email entered here is then used when adding a room resource inside Joan Portal.
2.As soon as the room resource is created, you need to add the user in the Delegates setting or the room resource for the Joan portal to have the correct permissions.