2.1
A minimum number of opted-in testers
- Requirement
- Google asks for a minimum number of testers who are actually opted in to the closed test. The figure most commonly cited is 12.
- What it means
- Because the threshold is on opted-in testers, an invitation count does not satisfy it. A roster of twelve invitations that produced nine opt-ins is a roster of nine for this purpose.
- Where to verify
- The production access screen in the console states the current criterion for your app and reports your own opted-in count against it.
2.2
One account fills one slot
- Requirement
- Each tester opts in with a Google account, and one account fills one slot.
- What it means
- Duplicate addresses, or a tester who signs in with a different account than the one invited, reduce the real count without reducing the apparent count on your roster.
- Where to verify
- Compare the console tester list against the accounts your testers actually opted in with, rather than against the list you invited.
2.3
Testers must remain opted in
- Requirement
- Testers have to stay opted in to the track rather than opting in once and leaving.
- What it means
- A tester who leaves and rejoins can interrupt the continuous period you are relying on. This is why participation has to be watched during the window rather than checked at the end.
- Where to verify
- The console reports how many days testers have currently been opted in continuously, which is the figure the application rests on.
2.4
Paid testers
- Requirement
- Google does not treat payment as the criterion. What matters is that each tester is a real account that genuinely opts in and uses the build.
- What it means
- Compensating testers is not the problem. Fabricated participation, or accounts that opt in without ever installing the app, is a different thing and undermines the application.
- Where to verify
- Judge your own roster against that standard before you rely on it, and read Google's policy on the practice rather than a summary of it.