I’ve tried so many times, but it’s still not working. I don’t think there’s a problem with my BP, but when I publish my app in alpha testing and when I download the app and click the “Remove ads button” which will run the In-App purchase. All it does is sign into google and that’s it. I have In-App products setup in my google play dev console and I put the name of my In-App product in the UE4 project settings. I followed this link for the instructions on In-App purchases.
This is my Bp of the In-App purchases