You are looking for a solution to synchronize data between your online website and your local store; you are looking for a quick solution to manage your cafe/restaurant. OpenPOS is a must have Plugin to do that.
OpenPOS is a complete point of sale system(POS) plugin for WooCommerce and WordPress. OpenPOS can be used for multi purposes like as Retailers Stores / Restaurant / Cafe / Spa salon. OpenPOS includes everything you need for a Point Of Sale system.