Hi @Mgodby :
Do you want to get the Capacity (Number of people) in a Room Resource within PowerApps app?
If you want to get the Capacity (Number of people) in a Room Resource within PowerApps app using Office 365 connector, I afraid that there is no way to achieve your needs.
Currently, within PowerApps, there is no way or functions supported from Office 365 connectors to get the Capacity (Number of people) of a specific Room resource.
If you would like this feature to be added in PowerApps, please consider submit an idea to PowerApps Ideas Forum:
https://powerusers.microsoft.com/t5/Power-Apps-Ideas/idb-p/PowerAppsIdeas
In addition,there is a way to get the room location:
Please try this code:
AddColumns(
Office365Outlook.GetRooms().value,
"location",
Office365Users.UserProfile(Address).OfficeLocation
)
Best Regards,
Bof