We have IAPenabled and have one entitlement IAP purchase.
After implementing everything according the sampleApp, 3 issues occurs :
1. Im not getting response from API, when request call is made
2. One customer sucessfully bought an innapp, but features was not unlocked
3. One customer tried it on Android device with Android 6 installed -> Issue 1. occured.
When he tried with the same account on Android 8 device, it worked as a charm..
I think all this issues must be somehow related...
Also I personally have sucessfully purchasd an IAP with my Galaxy S7 (Android 8) and everything works as it should..
Any hint thx?