I\'ve successfully completed the publishing process for an APK to the Internal Test Track. But when I try to view the App for download on the Google Play Store using the \"V
In my case the missing step was to enable Managed Google Play, which "Manage your private app and make it available to specific organisations". You don't need to apply an organisation filter, and simply use the internal test tracks.
The setting is found in Setup > Advanced Settings > Managed Google Play