Our app includes subscriptions and consumable in-apps, receipt verified by sever.
When we !relesed! the app and users try to buy consumable in-apps they get this error: "Code 21004 - The shared secret you provided does not match the shared secret on file for your account."
After the dozen hours we finally understood that we MUST to check consumable in-apps by SHARED SECRET KEY too! Like subscriptions....
Why is this not mentioned anywhere? whats wrong?