I too could not make sense of the setup process due to the incomplete documentation and my google search led me here..
So, as per your suggestion and the hint in the example, our package name is the custom schema for our game?
But according to another forum post I found: Is it something wrong with extension IAC on iOS? , that user managed to set a custom schema name somehow and then showed it working in the video.
Which one is it? Some clarity on this would be appreciated.
Thanks