What is a SKU and why is it important?

• A. A SKU is a Stock Keeping Unit used to track shipments
• B. A SKU is a Stock Keeping Unit used for supplier payments
• C. A SKU is a Stock Keeping Unit used only for pricing
• D. A SKU is a Stock Keeping Unit; a unique identifier for an item that enables precise inventory tracking and data analysis

Answer: (D)

A SKU is a unique identifier assigned to a specific item or product variation to enable precise inventory tracking and data analysis. This code travels with the item through purchasing, receiving, put-away, picking, shipping, and stock counting, so systems can record exact quantities by each SKU and know exactly where it’s stored. That level of precision supports replenishment decisions, demand forecasting, promotions, pricing, and profitability analysis because you can measure performance at the most granular level rather than guessing from broader categories. It also helps prevent stockouts or overstock by providing real-time visibility into inventory and accurate order fulfillment. The other options miss how SKUs function, since they aren’t primarily for shipments, supplier payments, or pricing alone; they’re internal, unique identifiers that drive inventory control and data-driven decision-making.