I want implement Play integrity in Android app but i have doubt i want to know if i am going to enable Google play integrity from play console will it any effect on already live app(play store production app).
Thanks,
->Want to just confirm that it will not effect in live app.
No, your app will not be affected.
Your app (new version of your app) will request an assessment from Google Play using Integrity API.
Then Google Play will return a verdict.
Then you (your app or backend) will decide how to disable users that have unsigned versions.