Android Inapp Billing: The Item You Requested Is Not Available For Purchase. Inconsistent On A Different Google Accounts

Please do not close this as duplicate without reading everything. Case Summary: Two google test accounts were used for IAP transactions using the same app build. One works, one do

Solution 1:

I sent a ticket to Google Support and they finally replied:

We recently updated in-app product testing requirements. Each tester needs to opt-in to your alpha or beta test before they can test in-app products. If they are not opted-in they will see an error that the in-app item is not available for purchase.

From: http://developer.android.com/google/play/billing/billing_testing.html:

Important: To test in-app products or make in-app purchases in your alpha or beta channel app, each tester needs to opt-in to your app’s alpha or beta test. On your test’s opt-in URL, your testers will get an explanation of what it means to be a tester and a link to opt-in.