The admin link extension is working fine on all non-dev stores so this bug is probably not being reported - and it’s probably also very new - we first noticed last week.
Extension is using this:
[[extensions.targeting]]
url = “app://choose/products”
target = “admin.product-details.action.link”
When you click on it from dev store, the redirect url address in the address bar looks like this which is correct:
https://admin.shopify.com/store/xxx/apps/xxx/choose/products?id=8839442169908&shop=xxx.myshopify.com
However the request is incorrect and does not match (found in the network tab):
This leads to a 404 not found since this request isn’t supported on that endpoint (its lacking /products and the ID data).
So there is some sort of mismatch between the desired request url and the actual request url. Something related to “dev” stores only.