Examples of situations where enterprise resource planning (ERP) played a key role in the just-in-time environment of two companies, Silflex and Manthorpe Group, are cited. Silflex, which makes multi-application silicone hoses, used Syspro ERP which fully integrates processes covering sales-order processing MRP, WIP and inventory control. The implementation of the ERP and Preactor APS enables Silflex to effectively plan and optimise the use of all its resources. On the other hand, Manthorpe Group, a precision engineering and building products manufacturer, previously used various legacy software systems for the four separate companies that comprise it. Manthorpe realised that it needed to source a more flexible fully integrated solution. With Infor ERP SyteLine 7, the company got a manufacturing solution with an advanced planning & scheduling engine, offering seamless supply chain synchronisation and dynamic overlaying of estimates.