What is the advantage of using any bug tracking tool?

Main objective for using bug tracking tool is to deliver high quality software product by keeping track of defect discovered and track these defects till it gets resolved, Improve Return on Investment (ROI) by reducing cost of development, when quality product is developed, so that it will have more reliable quality product, satisfied customers with long loyalty. Product and Project team can keep a track of detect Issues Earlier and understand defect trends in ongoin g software development.
Better Communication, Teamwork and connectivity amongst stack holders about software quality.