Lightspeed R-Series Lightspeed R-Series is a retail point of sale and inventory management system. It's used by retailers to manage sales, track inventory, and gain insights into their business performance. Think of it as a modern cash register and business analytics tool combined. Official docs: https://developers.lightspeedhq.com/r-series/ Lightspeed R-Series Overview - Customer - Customer Note - Sales Order - Sales Order Line - Sales Return - Sales Return Line - Item - Purchase Order - Purchase Order Line - Purchase Order Return - Purchase Order Return Line - Transfer Order - Transfer Orde…