In the rapidly evolving Product Development landscape, measuring success transcends the traditional milestones of launching a product. It encompasses a continuous cycle of delivering value to customers, adapting to market shifts, and refining processes to meet emerging demands. More simply put, how do you prove your Product is on track and matters in an increasingly competitive landscape in 2024? This chapter provides a comprehensive guide on how to effectively gauge the success of your Product Development through selecting and tracking the right KPIs, from project progress to market traction and more.