question

Hi, Thank you for your post. In sandbox environment, SDK tester produces the same purchase token for subsequent purchases of the same consumable item. But the live store will generate a different purchase token for each purchase, even if you purchase the same item. Please find answers to your queries below. 1) Yes, it is normal for SDK Tester to generate the same purchase token for a specific SKU as SKU is a unique identifier for every purchasable item. A specific entitlement and a subscription can only be purchased once. 2) No. Please make sure to use SDK Tester purchase tokens in Test environment and Live purchase Tokens in Live environment. Please ensure to remove special characters like '\n' from the purchase token before using it. Still if you get the same error, please raise a contact-us( https://developer.amazon.com/help/contactus.html) with your purchase token details. Then one of our support engineer will assist you further.