You may come in situations where as you have for example to configure Kiosk mode or enterprise apps or device shared mode. Certain apps you will need the package name ( examples as for example Samsung phone calls) – Enterprise system android app

Note: As per MS post you may have to work with your OEM to get this package name

https://docs.microsoft.com/en-us/mem/intune/apps/apps-ae-system

Samsung Phone Dialer ( see package name for deployment)

Enterprise apps require the package name.( check with OEM if neceesary for the package)

Other config requirements where you need the app identifier. A quick way to check your app id is from intune blade : home : all Apps , select the option “Columns”


App identifier

App identifier should be now showing after the change in columns