I'm trying to contact the "advertisers.lineItems.list" API endpoint of the Display Video 360 (DV360) Google APIs.
The problem is that even if the call works as intendend, I cannot seem to retrieve any Line Item from the "YouTube & partners" list, so far I'm getting those from "Display" and "Video" networks.
This behaviour is the same in the GET API call, if I try to request a Youtube Line Item, the API returns a 404 code.
Is there a parameter I'm missing or maybe a different endpoint to retrieve those?