Learn how REWE Product Tracking & Lidl Product Visibility Monitoring help brands boost shelf presence, optimize inventory, and gain competitive retail insights effectively. REWE product tracking and Lidl product visibility monitoring have emerged as critical tools to help retailers and manufacturers ensure their products are always visible, competitively priced, and stocked when shoppers are ready to buy. A recent Nielsen report shows out-of-stock items cost European retailers over €4 billion in lost sales each year — a gap that smart tracking can close.