Custom banners
A custom banner is a notice that you can display to customers. For example, you might want to show a banner that indicates that items are final sale and can't be returned or exchanged. This guide introduces how custom banners work, and describes the available resources that you can use to build custom banners.
How it works
Anchor link to section titled "How it works"You can use a checkout UI extension to build a custom banner. The following example shows how to display a banner that renders at the purchase.checkout.block.render target.
You can support static targets so that extensions can be rendered using the checkout editor in one of the supported locations in checkout.
Getting started
Anchor link to section titled "Getting started"Follow our tutorial to learn how to build custom banners in checkout.
Developer tools and resources
Anchor link to section titled "Developer tools and resources"Explore the following developer tools and resources to get familiar with building custom banners.