Shopify

Shopify conversion attribution

Shopify conversion attribution ties a paid store order back to a validated affiliate discount code or the referral preserved in Shopify note attributes. Signed order webhooks confirm the conversion without third-party cookies.

Published Jun 30, 2026 · Last reviewed Aug 30, 2026

Written by Attribloom Engineering · Reviewed by Attribloom Product · Last reviewed Aug 30, 2026

Web checkout attribution is far simpler than App Store attribution, but third-party cookies are disappearing, so cookie-based affiliate tracking is increasingly unreliable.

Attribloom confirms the sale from Shopify's signed `ORDERS_PAID` webhook, then applies commission to the post-discount merchandise subtotal in the store's currency, excluding tax and shipping. `REFUNDS_CREATE` events reverse the proportional commission for full or partial refunds.

Frequently asked

Does Shopify attribution need third-party cookies?

No. Attribloom confirms the order from Shopify's server-side webhooks and ties it to the affiliate's link, so it does not depend on third-party cookies.

Conversion attribution Server-to-server postback