Product codes are unique identifiers assigned to individual items, helping businesses track and manage their inventory. These codes can be in various formats, such as UPC (Universal Product Code) or SKU (Stock Keeping Unit), and are often found on product packaging. They streamline the process of sales, restocking, and inventory management. Retailers and manufacturers use product codes to ensure accurate pricing and efficient supply chain operations. When a product is scanned at the checkout, the code provides information about the item, including its price and description. This system enhances organization and reduces errors in inventory handling.