Full Answer

Broken tracking wastes ad spend in two ways: direct budget misallocation from incomplete attribution data, and degraded algorithm performance from training on partial signals. Meta's own research shows conversion tracking errors can waste up to 30% of budget. On a $10,000/month ad budget, that's $2,000-3,000/month going to campaigns optimized on incomplete data. The waste compounds because algorithms learn from bad signals, progressively targeting the wrong audiences and bidding on low-value impressions.