How does the POS system work with offline mode?

In offline mode, all essential data is preloaded in WooCommerce POS system, allowing you to create and manage orders even without an internet connection. You can continue billing, updating inventory, and managing customers seamlessly. Once the connection is restored, the POS automatically synchronizes all orders, payments, inventory changes, and customer details with the WooCommerce admin panel, ensuring accurate, real-time data and smooth business operations.

https://store.webkul.com/woocommerce-point-of-sale.html