question

Hi, We're using Unity + Unibill and IAPv2, and set up Live App Testing. All works fine, a purchase is made and I receive a receiptid, and eventually an email that says the purchase was successful. We've set up the RVSSandbox and it comes back with "Receipt Verification Service Sandbox is up!", however when we call the url for a receipt verification with the receiptid it returns {"status":false,"message":"Failed to parse receipt Id"} If instead I use https://appstore-sdk.amazon.com domain with the exact same path then I get the expected response back. Is there some part of the setup I'm missing? What does RVSSandbox actually do behind the scenes? Does it need to talk to another server, or is it just decrypting the receipt? Cheers, Jode