Great Plains Dexterity is proprietary programming language/environment, which was created in early 1990-th to provide platform / database / graphical interface independence for Mac and Windows based Great Plains Dynamics. Today it is legacy and Microsoft Business Solutions is phasing Dexterity out.
However Great Plains 7.5 and even 8.0 is Dexterity based application, so you have to deal with it and it’s customization.
Good news. Prior to version 7.0 Great Plains had plans on expanding GP functionality and so was changing tables structure – forcing Dexterity customization to be analyzed and partially rewritten with each upgrade. Not any more – GP structure stays the same – Microsoft is doing new modules acquisition and unifying it’s graphical interface to move all it’s ERP packages: Great Plains, Solomon, Navision and Axapta to web-based Microsoft Business Portal.
Still pain. Dexterity has possibility to customize existing Great Plains screens, so called Alternative Great Plains forms. This was upgrade problem in the past and it stays now – there is no way to do it in house (until you are willing to pay for full-time internal developer – who is usually in the learning curve). You got to bring in