In App Purchases & Ads not working in app after publishing to Google Play using Android App Bundle

Hello guys, I recently updated my app to fulfill GPlay requirements of 64 bit support. I uploaded the Android App Bundle built using Unity 2018.3.0f2. The problem is when the apk’s are generated by Google play, In App Purchases and Admob Ads are not working. I have even tried using the bundletool to build apk from .aab file on my machine and the ads and IAP don’t work still.
Who has faced a similar problem and how did you fix it??

I agree with the opinion above, the window for calling the Google Play shopping interface doesn’t work for me either

My guess is that you’re not building the Android Manifest correctly. For ads you need to include the app id in the manifest. You might want to read about manfmerger.

Im having same issue any luck fixing?