The working stack for D2C creator attribution in India: creator-specific landing pages (one URL per creator), unique promo codes (10–15 percent discount, single-use), rigid UTM templates, Meta CAPI server-side events on product-view / add-to-cart / purchase, and a Shopify order tag on every creator-attributed order. For campaigns over ₹1 crore, add a brand-lift survey (pre-post, 1,000-person panel) because promo codes and clicks miss the mid-funnel lift. The attribution window is agreed in writing before the brief ships — default 28-day click, 1-day view. Our full methodology is at /playbooks/attributing-d2c-beauty-creator-campaigns.
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