Customizing Checkout on Shopify Plus

On standard Shopify the checkout is mostly fixed, but Shopify Plus unlocks deep customisation through checkout extensions and branding APIs. You can add custom fields, upsells, gift options, delivery instructions, and validation rules — all while staying within Shopify's secure, high-converting checkout.

Since Scripts are being replaced by Functions and checkout extensions, building on the new stack keeps you future-proof. Experts Cabin builds custom Shopify Plus checkouts that reduce friction and lift order value.