Google Adsense has decided to retire the ad balance feature based on the feedback from it’s publishers. Going forward, Ad Sense will focus on developing their suite of blocking controls instead.
As per the Google Ad Sense latest update, they have said, “We’re removing ad balance from AdSense accounts on May 20, 2020. We’ll also remove the ad balance experiment option, including all completed ad balance experiments, on this date.”
If any publisher is currently using ad balance or running ad balance experiments, Google Ad Sense will email them with additional information. If not using these features, then a publisher don’t need to take any action.