A network engineer is building a BYOD flow in Cisco ISE for a corporate wireless network. Employees using Windows laptops, macOS laptops, Android phones, and iOS devices must all be able to onboard through the same single-SSID flow. During testing, Android users report that after registering they are prompted to install an app, while Windows users receive a downloadable executable. The engineer wants to understand which ISE component determines the platform-specific onboarding logic (which files, wizards, and profiles are delivered per operating system). Which ISE configuration element is responsible for this behavior?