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Tags:

  • Checkout UI
  • Customer Accounts

Polaris web components migration guides now available for Checkout and Customer Account UI extensions

We’ve published new migration guides to help you upgrade Checkout and Customer Account UI extensions to the latest API version and Polaris web components.

The new guides include:

  • Guidance for moving from React or JavaScript extension APIs to Preact, Polaris web components, and the global shopify object.
  • More than 60 component-specific migration pages, covering components such as Button, Checkbox, TextField, Banner and View for Checkout and Customer Account UI extensions.
  • Instructions for migrating checkout metafields to cart metafields

If your extension uses an API version earlier than 2025-10, use these guides to adopt Polaris web components, which are the default in API version 2025-10 and later.

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