Microsoft Dynamics GP or former Great Plains has large selection of development and programming tools. As technical consultant you should decide on the customization scope, life time expectancy, future customization migration to Project Green/Microsoft Dynamics (without GP AX NAV SL), etc.

Microsoft Business Solutions or current name is Microsoft Dynamics subdivision of Microsoft is on the way of very rapid and substantial changes. In earlier XXI century Microsoft purchased Great Plains Software (Great Plains and Solomon), then a bit later Navision Software (Navision & Axapta). Then it produced very nice idea on standardizing the ERP modules: Financials, Manufacturing, Supply Chain/Distribution, Human Resources with the following seamless blocks interaction and integration. Imagine