Checkout - UI

Topic summary

A developer successfully created a checkout page add-on that functions properly in their test store. However, after distributing it as a custom app to the live store, the app block fails to appear.

Issue identified:

  • The app block is not visible in the production environment despite working in testing

Solution provided:

  • The live store requires manual activation and configuration of the checkout app block
  • The block must be explicitly added through checkout settings before it will display
  • A link to Shopify’s documentation on configuring checkout app blocks was shared

The issue appears resolved with clear next steps for implementation.

Summarized with AI on October 29. AI used: claude-sonnet-4-5-20250929.

Hello.

Thank you, I coded an add-on for the page. My add-on works smoothly in the test store. I distributed it to the live store as a custom app, but the app block does not appear in the live store. What do you think could be the reason?

Hello,

The live store needs to activate and configure your checkout app block. Until it’s manually added there, the block won’t appear.

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