Meta CAPI & First-Party Data: Surviving Post-iOS18 Signal Loss

Step-by-step guide to setting up server-side Conversions API, event deduplication, and Gateway integrations to achieve a 9.5+ Event Quality Match score.\n\n### Core Implementation Guidelines\n- Set clean attribution windows (7-day click, 1-day view).\n- Consolidate ad sets to exit the learning phase within 72 hours.\n- Measure Contribution Margin Dollars weekly to guarantee net cash profitability.