Checkout.liquid
How to enable Shopify Plus checkout.liquid customizations
My upsell isn’t showing in my checkout, how do I get it to show?
How to upsell to a subscription in checkout and cart
How to get started: checkout upsells > checkout.liquid
How do I test a checkout upsell on a draft theme?
How to design checkout upsells with custom CSS
How to show an upsell on a specific page of the checkout
How do I make my checkout upsells show outside of the collapsed Order Summary on mobile?
How to manually install the checkout widget to the checkout.liquid theme file
Checkout Extensions
How can I let a shopper upgrade from a cart product to an upsell product that's shown?
How to automatically add a Free Gift with Purchase to the cart
How to find out which Shopify checkout you're using
How to get started: checkout upsells
I have a headless store, will checkout upsells work?
How to A/B test checkout upsells
How to show an upsell based on a certain cart value or other conditions