How to Judge Merchant’s Subscription Plan in Checkout UI Extension Without API Calls?

[Na_Proxy]

How to Judge Merchant’s Subscription Plan in Checkout UI Extension Without API Calls?

Hey fellow developers!
I’m building a Checkout UI Extension using purchase.checkout.block.render to add a custom field during checkout. I need to display this field only for paid-plan merchants and hide it for free-plan users.
As per Shopify’s behavior, direct API calls in Checkout UI Extensions aren’t ideal for performance. Does anyone have a scalable way to judge the merchant’s subscription plan without calling APIs on every checkout?

Any tips or best practices would be greatly appreciated!

Thanks in advance~

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[Paige-Shopify]

Hi @Na_Proxy, please see the solution provided here:

How to handle Free vs Paid plan logic in a Checkout UI Extension without API or metafield calls?

Hey @Ankit_prajapati, the recommended approach would be using a shop-level metafield. When you configure metafields in your shopify.extension.toml under [[extensions.metafields]], those values become accessible through useAppMetafields() without your extension making API calls during checkout. This is architecturally different from using network_access to fetch data, which would add the latency you’re trying to avoid. For an example, the display custom data guide shows this pattern in action. …