Suppression plus targeting tightening cut CPL 42 percent.
A B2B SaaS team was running Meta and Google at 180K monthly with CPL at 142. The team pushed the customer list to the ad platforms as a suppression audience (cut 18 percent of impressions reaching existing customers) and rewrote the loosest ad-set targeting from "US tech decision-makers" to "US-based, 50-500 employee, specific industry, specific titles." Blended CPL dropped to 82 inside six weeks. Lead quality held steady; CPQL dropped proportionally. The combined ROI math funded the next quarter's campaign expansion.