Today’s merchants demand more from their apps. They’re looking for customizability, consistent performance, and high conversion rates. They also want to give their customers a hyper-convenient buying experience that feels personalized and removes all friction. So whatever app your build needs to check all the boxes—and that includes a seamless in-app checkout experience.

With just a few lines of code, Shopify’s new Checkout Sheet Protocol lets you deliver the world’s best-converting checkout experience. It’s also customizable, easy to maintain, and future-proof.

What Shopify checkout gets you

By leveraging Shopify’s world-class checkout, not only do you give shoppers a well-known and highly trusted way to check out fast, you also tap into the proven reliability and performance of the Shopify infrastructure. That means you automatically benefit from Shopify’s ongoing performance improvements and feature rollouts. Plus, you don’t have to worry about maintaining and safeguarding your own separate checkout flow.

Merchants also see a clear increase in conversions. When we first introduced the Shopify Checkout Sheet Kit for Android and iOS late in 2023, some merchants reported a 15% boost in conversion rate.

Introducing the Checkout Sheet Protocol

Shopify’s Checkout Sheet Protocol is the underlying technology that powers Shopify’s Checkout Sheet Kit, offering you complete control over how the experience is integrated with your native code. It also unlocks custom checkout themes, feature configurations, and other customizations, making it easier to meet unique brand specifications and policies.

Once authenticated, the Checkout Sheet Protocol interface enables seamless communication between the embedded checkout and native code. The two-way protocol provides messages to the native app about checkout status, errors, and action requests, and the app can send messages to inform and affect behavior of embedded checkout in real-time.

How TikTok uses the new protocol

“We're thrilled to announce TikTok In-App Checkout, powered by Shopify—our latest joint innovation that empowers merchants using TikTok's ad solutions to maximize sales,” said Lorry Destainville, Global Head of Monetization Product Partnerships at TikTok. “Together with Shopify, we're making it easier for TikTok's users to discover, shop, and now check out in a frictionless experience, while enabling brands to convert more shoppers and boost return on ad spend.”

How to get access

Shopify’s Checkout Sheet Protocol is now available to select partners on request. To start integrating with the new protocol, reach out to your Shopify partnership manager.