How to fix You are not authorized to make purchases of this InApp in Sandbox at this time error

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Android Hub 4 you : the free android programming tutorial: How to Inegrate In App Purchase Billing in Android : In App Purchase Demo In Android : Billing Services in Android : Payment Getaway in Android

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About subscriptions, Google Play's billing system

What does it mean when it says in-app purchases are not allowed? - Quora

How to fix You are not authorized to make purchases of this InApp in Sandbox at this time error

SOLVED] Sandbox for InApp Purchase restricted to certain regions. What to do?