Currently developing my first HTML5 app with in-app purchasing for consumables implemented using the example given here ...
https://developer.amazon.com/public/solutions/platforms/webapps/docs/consumable.html
Testing using the Web App Tester flags an error for repeat purchases ... Purchase cannot be completed because the previous purchase has not been fulfilled.
Is notifyFulfillment part of this API? If so, do you have a JavaScript example of an implementation?
Thanks.