Checkout app extensions

Checkout UI extensions let you add custom workflows and functionality at defined points of the checkout process, and are built into apps using extension point APIs and UI components.

Post-purchase extensions let you add new UI and functionality to the post-purchase page, and are built into apps using extension points APIs and UI components provided by Shopify.

Order status page extensions let you add new UI and functionality to the order status page, and are built into apps using extension points APIs and UI components provided by Shopify.

Learn how to use checkout app extensions by following one of our use case tutorials:

Pre-purchase product offers

Build a pre-purchase upsell offer that prompts the customer to add a product to their order.

Post-purchase checkout extensions

Create a basic example of a post-purchase checkout extension.

Order status page extensions

Build a post-checkout survey that asks the customer how they heard about the store.

Custom banners

Learn how to add a custom banner to checkout.

Custom fields

Learn how to add custom fields to checkout that customers can use to add delivery instructions to their order.

Field validation

Use a checkout UI extension to validate fields at checkout and block customer progress.

• Learn about the resources available for building checkout UI extensions.

• Learn about the extension points available to post-purchase checkout extensions.