⚡ Tier 2 - ImportantID: attributionOverlapDoubleCounting
Attribution Overlap / Double Counting
Why platform totals exceed actual conversions by 2x to 4x
In Simple Words (Zero Jargon):
Why platform totals exceed actual conversions by 2x to 4x
Why It Is Critical
When a buyer touches a Meta ad, Google Search ad, and email before buying, all three platforms claim full credit for that single purchase. Managing this gap requires using Shopify/CRM order numbers as truth and evaluating top-line blended MER.
Strategic Rules of Thumb & Execution Playbook
- Always use your e-commerce backend, CRM, or payment processor as the source of truth for actual conversion volume.
- Use MER (total revenue ÷ total marketing spend) as a platform-agnostic efficiency check.
- Use GA4 attribution reports for a single-model view that deduplicates across channels.
- Use incrementality testing for high-spend channels rather than relying on claimed numbers.
What You Get: The awareness and tools to reconcile platform-reported conversions against reality - preventing over-investment in channels that look better than they are because of attribution inflation.