I have just created and deployed a POS UI Extension targeting both "pos.cart.line-item-details.action.menu-item.render" and "pos.cart.line-item-details.action.render"
Here is my .toml file :
api_version = "2025-07"
[[extensions]]
type = "ui_extension"
name = "Test name"
handle = "test-handle"
description = "description"
# Controls where in POS your extension will be injected,
# and the file that contains your extension’s source code.
[[extensions.targeting]]
module = "./src/Menu.js"
target = "pos.cart.line-item-details.action.menu-item.render"
[[extensions.targeting]]
module = "./src/Action.js"
target = "pos.cart.line-item-details.action.render"
It worked during development, the extension appears in the cart line item detail screen.
But after deploying to production, I am unable to add it to the cart line item detail screen, as the “Additional areas” is not appearing in the Point of Sales Sales channel in Admin, which it should appear for these type of extension.
Instead, the “smart grid tile” option appear, which is incorrect.
I have tested, the “Additional Areas” appear correctly to other targets, like “pos.draft-order-details.action.menu-item.render” :
, definitely happy to help take a look at this. I’ll DM you on my end here so that we can share a few more details that might be more sensitive (shop info so we can troubleshoot), I’ll loop back into the public thread to share our findings once we have a resolution 
