How to deploy your custom .apk files to android fully managed devices from Intune

Hi Shabbir !

If the private play store is no longer an option, the line-of-business function should be the way to go. 

Just to be sure, have checked the it has been assigned to the correct group(s)? 

Could it be that you have restrictions set on installing applications from untrusted sources or installation from outside the play store? I'm not sure but that might be conflicting with this install method. 

Edit: I've checked it myself since its been a while that i've used this but the line of bussiness function only works when a device is enrolled as Device Administrator and not as Android enterprise. Since DA is no longer support, you might have no other option than installing it by hand on each device.