Do custom affiliate links use my Shopify domain?

Yes. A custom link such as yourstore.com/alice uses your store's own domain, and it can't use a different domain. Custom links need the Pro or Premium plan.

Create a custom link

1. Open Affiliates.
2. Open the affiliate.
3. Click New link in the Referral links card.
4. Choose Custom link under Link type.

   

5. Enter the page of your store that the link opens in Destination.
6. Enter the end of the link in Appearance, for example alice.
7. Click Save.

Simple Affiliate creates each custom link as a Shopify URL redirect. The target of the redirect carries the affiliate's tracking code, so a click on the link counts like a click on any other referral link. The end of the link can't have spaces or the characters ?, &, #, =, : and /, and two custom links of your store can't have the same end. The steps with screenshots are in How to Create Custom Links.

A link with no custom link

On any plan, you can add ?sacode= and the affiliate's Link ID to a URL of your store. The Link ID is in the Link ID column of the affiliate's Referral links card. A Shopify URL redirect that you create yourself can point to such a URL. The steps are in How to manually create links and track referrals.