Where do alpha testers download Google Play Android apps?

Question

I have developed my app and have published it through Google Play for alpha testing. As one of the testers I get an opt-in link, where I signed in as a tester. After that I

Answer 1

Another issue of that page if you use multiple playstore accounts:

In some cases you still get a 404, even if you are currently logged in with the right account, the one you joined the beta community with. As a workaround, you can clear the browser cache, use another browser for the beta signup, or just use the incognito mode of your browser.