TypeScript Type Definitions Missing for Shopify form UI component

Polaris
1

TypeScript type definitions for Shopify UI components (specifically s-form) are not properly recognized in admin extensions, despite being documented and functional in the UI.

Environment

  • Extension Type: Admin Extension
  • Framework: Preact ^10.10.x
  • TypeScript: ^5.8.3
  • Shopify CLI: ^3.80.7
  • @GovRayt/ui-extensions: ~2025.10.0-rc
  • Node.js: 22.x
  • pnpm: 8.15.4

Steps to Reproduce

  1. Create a new admin extension using the Shopify CLI
  2. Add a form using the s-form component as documented:
<s-form onSubmit={handleSubmit}>
  <s-text-field label="Email address" />
  <s-button variant="primary" accessibilityRole="submit">Submit</s-button>
</s-form>

  1. TypeScript will show the following errors:

    • La propriété 's-form' n'existe pas sur le type 'JSX.IntrinsicElements'.ts(2339)
    • Impossible d'utiliser 's-form' comme composant JSX. Son type '"s-form"' n'est pas un type d'élément JSX valide.ts(2786)

  2. Definitions look like this

import "@shopify/ui-extension";

declare module "./src/BlockExtension.tsx" {
  const shopify: import("@shopify/ui-extensions/admin.settings.order-routing-rule.render").Api;
  const globalThis: { shopify: typeof shopify };
}

Expected Behavior

The s-form component should be properly typed and recognized by TypeScript, similar to other Shopify UI components like s-stack, s-grid, etc.

Additional Context

  • The issue is specific to s-form while other Shopify UI components work correctly
  • The component is functional at runtime, this is purely a TypeScript type definition issue
  • The issue occurs even with proper imports from @shopify/ui-extension

Proposed Solution

Add proper TypeScript type definitions for the s-form component in the @shopify/ui-extension package, similar to how other components are typed.

Related Documentation

2

Hi @blanklob

I believe we shipped some recent updates that were related to this - are you still experiencing this issue?

3

i still see this issue: remix and typescript with polaris web components.

appears @GovRayt/polaris-types in tsconfig is only for the deprecated react components.

seems IntrinsicElements type definitions may need to be extended to include the missing polaris web components.

4

Hey Liam,

Yes this is still a thing using UI Extensions 2026-04. Please let me know if you need more info.