Fetching PVZ with ThingWorx Flow

I'm working on a project that requires the fetching of pvz from thingworx flow. I used the following actions to do so: get structure to fetch BOM, a loop to iterate on each element of the array fetched with the aformentioned action and a get content to fetch pvz. The issue is that the fetched pvz are almost empty. Is there another way to fetch pvz?
Thanks in advance