MSDynamicsWorld has a new interview with Errol Schoenfish titled Microsoft Dynamics GP 2013 and Beyond: Managing the Future of an ERP Product in a Shifting Landscape
Microsoft Dynamics GP 2013 and Beyond: Managing the Future of an ERP Product in a Shifting Landscape | MSDynamicsWorld.com
Payables & ReceivablesGP 2013
Archived post from 2012. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.