The Affiliate code in a Shopify order's Additional details section is the Link ID associated with the referral. This Link ID comes from Shopify's checkout pixel. You can use it to find matching referrals in Simple Affiliate.
1. Find the Affiliate code on the order
In Shopify admin, open Orders and select the order you want to check. Locate the Affiliate code in the order notes and copy its value.
2. Filter referrals by Link ID
Open Simple Affiliate and go to Referrals. Filter by Link ID using the Affiliate code you copied from the order notes. Review the matching referrals.


