My colleague Rober Sawyer has an awesome look at Analysis Cubes Basics for Microsoft Dynamics® GP.
This is a recording of one of our webinars and if you’re even thinking about Analysis Cubes you need to watch this.
Analysis Cubes Basics for Microsoft Dynamics® GP | Dynamics Care Services
Archived post from 2012. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.