It's Tuesday morning. Shopify admin says $84,200 in revenue yesterday. GA4 says $79,600. Meta Ads Manager claims a 4.2x ROAS on the same day your finance spreadsheet has penciled in at 2.8x. Nobody's lying, exactly. Each tool is just counting a different thing, on a different clock, with a different attribution window. If you're running ecommerce analytics for a D2C brand on Shopify Plus, you already know this fight. You have it every week.