Has anyone found the quote below from this site to be true? I released an app a while back and didn’t have to do that, so I’m a little confused by his statement.
When you publish an app for the first time, you need to create a Google Group or a Google+ community for testers before the link to your app becomes available. If you try to access the link (even using your own Google account) without being a member of the configured group/community, you’re greeted with a 404 page.