Meta is set to discontinue the widely-used “Reach” metric on Facebook, effective October 31st. Reach measured the number of unique accounts that a post, photo, video, or Reel reached. It will be replaced by a new metric called “Viewers.” This change was confirmed in an official announcement from Facebook. The company did not specify the exact reason for the shift, but it impacts how content performance is measured. Users will now focus on "Viewers" to understand their content’s visibility. The transition aims to provide a different perspective on audience engagement within Facebook.