POSLink™ is an interface developed by Elypsis to exchange data between Microsoft Dynamics-NAV® (formerly Navision) and the Microsoft Retail Management® System. The master database, a feature of Microsoft Dynamics-NAV®, provides inventory and customer information. POS Link provides:

A seamless interface for creating invoices by moving retail sales information collected in POS into Microsoft Dynamics-NAV®
A tool that updates, adds and transfers vital customer information for a variety of uses, including: ordering, invoicing and tracking