How does parts and inventory management work in Field Service?

FSL parts management uses these objects:

1. Product Items — inventory records representing physical stock at a Service Location (e.g., van stock, warehouse).
2. Product Consumed — tracks parts used on a Work Order or Line Item, reducing inventory on the Product Item.
3. Product Request and Product Request Line Items — a request for parts to be transferred to a location or resource.
4. Product Transfer — records the movement of stock between locations.
5. Return Order and Return Order Line Items — track parts returned from a job site to a warehouse. This end-to-end chain supports full inventory visibility from warehouse to technician van, enabling accurate parts usage reporting and replenishment planning.