Hello, Any luck of this?
I folked the git and made a manifet.json file under www folder.
But it seems not working well.
I attached what I did.
notice that Outsystems mobile app has it's own monifest.json and if you put your manifest.json on www folder it will conflict , all things you have to do is:
1- rename your manifest.json to something else like my-manifest.json and put it on plugin www folder
2-on your git open java file InAppBillingV3.java and find "www/manifest.json" and change it to your own like "www/my-manifest.json" then build your app and test it again , if you want to support IOS you have to repeat this step for IOS source file also.