Understanding <a href=https://npprteam.shop/en/articles/facebook/why-facebook-ads-conversion-drops-in-2025-and-how-to-fix-it/>how to fix Facebook conversion drops in 2026</a> has become essential for brands watching their ROAS decline despite stable spend. Meta's algorithm increasingly struggles with signal degradation caused by iOS privacy shifts, first-screen leaks in measurement pipelines, and WebView rendering friction that obscures user intent signals. The article breaks down why conversion rates are contracting across verticals and outlines diagnostic steps to identify which channel bottleneck—clean signal loss, attribution delays, or technical WebView friction—is depressing your performance metrics. Marketers relying on pixel-based tracking and legacy conversion protocols face compounding headwinds as Meta's inference models receive noisier training data. Implementing the recommended fixes—signal validation, first-click mapping recovery, and cross-domain WebView optimization—can restore 15-30% of lost conversion volume within 60 days.