Measure Facebook lead generation in Looker Studio with KPIs for leads, conversions, purchases, cost per lead, cost per conversion, and cost per purchase. Review top ads and ad sets to find creative and messaging that drive the most leads at the lowest cost. Break down results by device, publisher, demographics, and region to pinpoint high‑quality audiences. Track spend vs. leads and monthly trends to understand efficiency and momentum. Use the insights to shift budget, refine targeting, and scale what works.