In an app installed from the Testflight I make an in-app purchase. Very simple. Non-consumable product.
When I try to verify a receipt I got the 21007 status: {"status":21004, "environment":"Sandbox"}
But the in-app purchase is not an auto-renewable subscriptions.
Same application installed from the AppStore for the same in-app purchase works fine - the receipt verification goes to the Apple production servers, not to the sandbox.
Is it a problem on the Apple side with the sandbox verifications?
Does it happen only for me?