Every ECN, BOM revision, and configuration change carries real supply risk — obsolete inventory, mismatched lead times, orphaned purchase orders, or a production line that stops because the "old" part and the "new" part weren't sequenced correctly. Communicate disposition of superseded, obsolete, and excess inventory resulting from part changes, including coordinating rework, scrap, or return-to-supplier to quality, supply chain and operations to coordinate appropriate actions.