Cart permalinks are one of Shopify’s most underrated features. A URL like yourstore.com/cart/12345:1,67890:2?discount=SUMMER pre-loads two variants into the cart and applies a code — no app needed, no setup, no monthly fee.
For a small enough store with a small enough campaign cadence, that’s a complete solution. Most merchants who eventually look at Checkout Links started with permalinks and grew out of them. This page is the honest version of what that growth looks like.
How it works
Drop in Checkout Links on top of your existing Shopify store. Your permalink URLs keep working — Checkout Links just adds a parallel URL space with the extra capabilities. Most merchants migrate gradually: new campaigns use Checkout Links, old permalinks continue to function until they age out naturally.


