I’ve been working on an app for Plus stores utilizing Checkout UI and wanted to test the app on one of the clients production stores on a dev branch. When I tried to edit the checkout, it took me to Market group checkouts which let me build a new checkout but I couldn’t find a way to assign it to that specific dev branch. Is there any way to customize a checkout for a specific branch so I can test this app before publishing?
I checked on this, and there isn’t currently a way to assign a checkout customization to a specific dev/theme branch. Checkout customizations are scoped to checkout configurations and market-specific overrides, not theme branches.
For testing before making changes live, the supported paths would be:
Use shopify app dev with a development store to test the Checkout UI extension during development.
If you need a fully isolated production-like setup, a separate staging/development store is the safest route.
I definitely get that branch-specific checkout testing would be useful here, so I’m happy to pass this feedback along on our end if you’d like! Let me know if I can clarify anything further.