The document discusses Metro Group's implementation of RFID technology. Metro Group is Germany's largest retailer with over 2,300 locations across 30 countries. In early 2004, Metro announced plans to rollout RFID at the pallet and case level across 250 stores and 10 warehouses in collaboration with 100 suppliers. The initial rollout faced problems with tag quality and reader accuracy. Later, Metro expanded RFID tagging to case level which provided more benefits but also required more investment. Financial analysis showed Metro's total cash flow and sales increased after implementing RFID. For next steps, the document recommends expanding pallet tagging while gradually introducing case tagging with key suppliers.