How to Create Checkout UI Extensions in Shopify?

Shopify Checkout UI Extensions enable developers to customize and enhance the checkout experience for merchants. With these extensions, you can modify the checkout page to make it more engaging for customers, increase conversions, and add more functionality. In this guide, we will take you through the steps to create a Checkout UI Extension in Shopify.

Prerequisites

Before you begin, make sure you have the following:

• A Shopify Partner account
• A Shopify development store where the checkout extensibility feature is enabled
• Node.js; the latest LTS version is recommended
• Shopify CLI installed

Steps to Create Checkout UI Extensions in Shopify:

Step 1: Create a New Shopify App

To kick-start the process, open the terminal and execute the following command:

shopify app init

Follow the prompt and fill in the functional details for your app. When asked about the type of extension, select Checkout UI Extensions.

Step 2: Move to Your App Directory

After your app was created successfully, navigate into the project folder:

cd your-app-directory

Step 3: Create a Checkout UI Extension

Now run the command below so you can create the Checkout UI Extension within your app:

shopify app generate extension

When prompted choose Checkout UI Extension and give your extension a name.

Step 4: Develop the Extension

Go to the extension directory and open the src/index.jsx file. You will see a React component using Shopify’s @shopify/ui-extensions-react package. Alter the file as needed. Here’s a simple example:

import {
  reactExtension,
  Banner,
} from '@shopify/ui-extensions-react/checkout';

export default reactExtension(
  'purchase.checkout.block.render',
  () => <Extension />,
);

function Extension() {
  return <Banner>Your extension</Banner>;
}

This code adds a simple banner to the checkout page.

Step 5: Preview the Extension

Execute the following command to preview your extension in a Shopify development store:

shopify app dev

This should give you a URL that you can use to preview the extension in checkout.

Step 6: Deploy the Extension

After you are satisfied with your extension, deploy it by using the following command:

shopify app deploy

Once deployed you can manage your extension in the Shopify admin.

Conclusion

Checkout UI Extensions offer powerful capabilities for customizing the checkout experience in Shopify. By going through this guide you can create, test and deploy extensions that improve the checkout experience for merchants as well as customers.