The document describes an omni-channel POS software that provides a unified shopping experience across online and in-store channels. It syncs backend operations and customer-facing services to give customers a seamless experience on a retailer's website, apps, and physical stores. The POS software connects a retailer's inventory, sales orders, customer data, and more under one centralized system, keeping this information updated in real-time as customers shop through different channels. It also includes features like click-and-collect, endless aisle, and easy returns to enhance the customer experience across channels.