Odoo 20 POS Offline: Selling Through an Internet Outage

Abstract illustration of a point of sale register continuing to sell while its network connection is down

Odoo POS offline mode keeps order creation working from the browser cache during an internet outage and syncs orders when the connection returns. This guide is explicit about the limits — payment terminals, invoices, customer registration and real-time stock — and gives a preparation playbook using the cached-data parameters.