In order to be able to keep guaranteeing the performance of your business processes your ERP systems simply have to perform optimally. The monitoring of your ERP environments is labor-intensive, expensive and often re-active. The goal of a ERP system health check is to, independent of the chosen system and system management (intern, out tasking, outsourcing), to identify weakness and risks and to provide optimization variants. In our experience we have often the conclusion that even after a long period with good working systems , difficult to identify dangers can be sensed.