This Guidance helps retail companies implement smart inventory management with Radio-Frequency Identification (RFID) using AWS services. Retailers can place RFID tags on items that emit signals to RFID readers, which are then processed to generate near real-time data related to stock, transactions, inventory levels, or purchase order history for individual customers. Implementing RFID can improve the customer experience, reduce operational cost, and enable retailers to make informed decisions while planning. This Guidance includes four separate architectures showing how to use RFID for managing, counting, and identifying store inventory and for detecting inventory loss.