I have published my application as an alpha release, initially English(US) only, but eventually added "Rest of World". The application says published (No more pending updates) and provides a link "https://play.google.com/apps/testing/{app name}". Navigating there, even if I log in with the user logged in that has been invited, it still stays item not found. Am I missing something?
Anthony Home.
You have to set up Google Group or Google+ Community for testing Application.
And add your tester into that Google Group or G+ Community
Here is full description and step by step instruction about how to test Alpha or Beta APK from Google Play Store.