Stock Lot Shipment Traceability

This module adds a report that answers the question: "who received this Lot/Serial Number, directly or through a product that used it?"

You start from a wizard found under the Warehouse reporting menu. You choose a Product and a Lot/Serial Number (the lot is mandatory; picking a lot automatically fills in its product). When you press Confirm, Odoo looks for all completed stock moves where that lot — or any lot produced from it — left or entered a customer or supplier location. If nothing is found, it shows the message "There isn't any shipment involving this lot."

If shipments exist, Odoo opens the Shipment Traceability Report, a read-only list and pivot view. Each line shows the kind of operation (Reception, Supplier Return, Delivery, Customer Return), the date, the picking, the product, the lot, the directed quantity, the unit of measure, the partner and the origin document. Returns are highlighted in red and receptions in green. You can filter by product, partner, date or direction, and group by product or partner; the pivot view sums quantities per partner.

The report is a read-only analysis view built from stock move lines, so it does not change any existing document. It is restricted to the user's allowed companies.