ERROR: PRODUCT NOT AVAILABLE FOR PURCHASE

Hi,after upgrading IAP Core to 2.2.2 and IAP Store to 2.2.7 this error appears. ERROR: PRODUCT NOT AVAILABLE FOR PURCHASE. Maybe someone knows how to solve this problem?

Was it working prior to the upgrade? Please share the device logs, this is on Android? Also, please translate into English. How To - Capturing Device Logs on Android . Ensure you’ve followed the directions here. There are a few bad links but mostly correct Unity - Manual: Configuring for Google Play Store