In order to make a packaged ERP solution suitable to a company’s way of doing business and to interface it with other systems, it is usually unavoidable to make modifications. Moreover, it is often in the gaps created by these generic ERP systems where the real opportunities to innovate and gain competitive advantage exist. But over time, these modifications can also be a burden, especially when they are developed in hard-to- maintain or error-prone code. Many IT departments find that they are spending most of their time maintaining these modifications and interfaces. Green’s General Foods (Green’s) found a way to wind back their RPG-developed ERP modifications without losing any custom functionality. Over 150 RPG programs have been replaced with LANSA’s Business Process Integrat

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