Influencer + affiliate tracking on Magento — what works?

Three layers, depending on scale:

• UTM + native Magento sales rule discount codes — for brands under $1M GMV. Each influencer gets a unique discount code (e.g. SARAH15) that auto-applies a 15% discount and tags the order. Pull the report monthly, pay per order. Cheap, ugly, works.
• Refersion or LeadDyno — mid-tier ($89–$499/mo). Affiliates get a tracking link + dashboard, you get attribution per affiliate, payouts auto-calculated. Native Magento extensions exist for both. Best fit for $1M–$10M brands.
• Impact, PartnerStack, Awin, ShareASale — enterprise affiliate networks. $1k–$5k/mo + 5–10% of affiliate revenue. They handle recruitment, fraud detection, and payments. For fashion, RewardStyle (LTK) is the dominant influencer-affiliate platform; integrates via product feed.

For paid influencer campaigns (vs affiliates), Aspire, Grin, CreatorIQ handle creator discovery + briefing + content rights + tracking. Magento integration is product-feed + UTM-based; campaign attribution lives in the influencer-platform UI.

Cookie-based tracking is dying (ITP, GDPR, third-party cookie deprecation). The 2026 pattern: discount-code-as-attribution + server-side conversion tracking via Magento order webhooks → Meta CAPI / TikTok Events API / Google Enhanced Conversions.