Facebook discloses issues with tools used by advertisers

Facebook has disclosed a set of issues with tools that advertisers and media companies use to measure their audiences on the social media platform.In a blog post on Friday, Facebook said it identified issues in three areas: calculations of estimated and potential audience reach, how the company reports reactions to live videos and how Like and Share button metrics compare to mobile search query metrics.All three relate to information Facebook shares with advertisers and media companies about the