App extension UUID and handle

Shopify Apps

Topic summary

A developer is seeking guidance on how to retrieve an app extension’s UUID and handle in Shopify.

Initial Response:

  • Another user suggested consulting Shopify’s documentation on theme app extension configuration and running npm run shopify app env pull to obtain the UUID.

Unresolved Issue:

  • The original poster clarified that the command only returns the app key and secret, not the extension UUID or handle.
  • The provided documentation did not contain the needed ID or handle information.
  • A third developer encountered the same problem: Shopify did not generate an environment file for their theme-app-extension, and the command failed to produce the Extension UUID.

Current Status:
The discussion remains open with no working solution identified. Multiple developers are experiencing difficulty locating extension UUIDs through standard Shopify CLI commands and documentation.

Summarized with AI on October 31. AI used: claude-sonnet-4-5-20250929.
1

Hello,
I want to get an app extension UUID and handle
How can I get this?

2

Hello,

Follow this document:- https://shopify.dev/docs/apps/build/online-store/theme-app-extensions/configuration#app-block-deep-link-query-parameters

And for UUID use: npm run shopify app env pull

3

Hi, @BrainStation23 ,

npm run shopify app env pull on this command I get only the app key and secret.
I want to app extension uuid and handle.

I did not find any ID or handle in the document I used and that you shared.

1 Like
4

Hey,

Did you get any resolution for this?
I am working on a theme-app-extension and shopify did not create any env for me.

Used the above command and yet I do not find the Extension UUID in the env.