Posted on 03/12/2020 12:35:35
Hi Lars,
It is related to permissions.
If the item type doesn't allow module attachment then the "App" button is not visible at all.
If the user doesn't have sufficient permissions to the attached module then the button is visible, but disabled.
So you need to go to Apps and check the permissions configured for "Product catalog (ecom)" or "Product catalog for ViewModel" - or whatever module you are using.
Besides permissions for specific users or user groups you should also check for permissions on system roles and any inherited permissions. You should be able to see all that in the permissions dialog for each module.
Best regards,
Morten