If you have GP Mfg installed, it is only a matter of reg keys to activate it. It would not cause any harm in activating it. It is part of the Mfg Suite which also includes the Engineering Change Mangement, Sales Convigurator, Quality Assurance, and Job Costing. None of these modules, when activated, cause any issues in a live environment. I would recommend testing in a test company though, as they can affect trx and flow when using.
Dan Liebl, CMA CPIM | Senior Consultant | OTT,Inc | DLiebl@OTT-inc.com