// Conversion · Checkout

Shopify checkout UI extensions & Functions

On-brand, higher-converting checkout — custom fields, upsells, and discount/validation logic, built the supported (Plus) way.

// The problem

Checkout is where the money is, but it's the least customizable surface — and unsupported hacks break on every Shopify update.

// How we build it

We use Checkout UI extensions and Shopify Functions to add branding, custom fields, post-purchase upsells, and delivery/discount/validation logic — all within Shopify's supported, upgrade-safe framework.

// Impact
  • On-brand checkout (Shopify Plus)
  • Post-purchase upsells
  • Custom discount & validation logic
  • Upgrade-safe, supported approach
// Stack
  • Checkout UI extensions
  • Shopify Functions
  • Shopify Plus
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// Let's talk

Want a Shopify checkout UI extensions & Functions in your store?

Tell us about your store and we'll come back with honest thoughts, scope, and a rough estimate within one business day.