Winning with <a href=https://npprteam.shop/en/articles/facebook/why-facebook-ads-conversion-drops-in-2025-and-how-to-fix-it/>Meta Ads signal quality optimization for performance marketers</a> requires understanding how clean data flows through the modern ad ecosystem and where friction points silently tank conversion ROI. The guide explores how first-screen leaks—incomplete handoffs between web and app environments—contaminate Meta's conversion windows and weaken audience learning models during budget scaling phases. Specific optimization tactics include signal source auditing, event deduplication across measurement partners, and WebView protocol alignment to ensure Meta receives the highest-integrity conversion signals possible. This resource is invaluable for performance teams running six or seven-figure monthly budgets where even 2-3% signal degradation translates to six-figure revenue impact.