AppPackage and AppActivity of Dual Application

Dear all, I’m using Galaxy C7 and there is a dual messenger function, so I’m able to create and open two Whatsapp applications, but I’m not able to invoke the extra Whatsapp by locating the AppPackage and AppActivity in Appium. Any idea?

*I’m using real physical device, not virtual device
*I have used the APK info application, but only the original Whatsapp has been shown