Ian Stewart is starting a nice series on How to Prepare Microsoft Dynamics GP for a Multi-National Deployment, Part 1 – Language and Local Requirements
How to Prepare Microsoft Dynamics GP for a Multi-National Deployment, Part 1 – Language and Local Requirements | MSDynamicsWorld.com
Archived post from 2012. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.