I can replicate this behaviour within a search head pool by
What I need is for the lookup definition dropdown to be able to find lookup tables under <sharedstorage>/etc/apps/<app>/lookups/<csvfile>
From which app are you using Manager?
One "wrinkle" to the UI -- the dropdown of available lookup table files is based on the app context of Manager, not the destination app you choose for the lookup definition.
In other words, if you are using Manager from the Home app while writing these lookup table files and definitions to the "search" app via the "destination app" dropdowns, then this is expected (though somewhat confusing) behavior.
The workaround is to use Manager from the search app or to share the lookup table globally (across all apps).
From which app are you using Manager?
One "wrinkle" to the UI -- the dropdown of available lookup table files is based on the app context of Manager, not the destination app you choose for the lookup definition.
In other words, if you are using Manager from the Home app while writing these lookup table files and definitions to the "search" app via the "destination app" dropdowns, then this is expected (though somewhat confusing) behavior.
The workaround is to use Manager from the search app or to share the lookup table globally (across all apps).
That is confusing behaviour! Thanks for the explanation!