If the app cannot be used without an external input device (e.g. gamepad or 3DOF controller), and no input device is detected when the app starts up, the app must warn the user to connect the necessary device.
- if your app requires a VR Controller or gamepad but it isn't connected at app launch, present a notification that no gamepad is detected and that it’s required to use the app.
This is the response from Oculus Team, is anyone aware of how can we Detect those in BPs?