This chapter aims to summarise the detail of an integrated planning and control system. The most comprehensive models originate from manufacturing, and link key activities like resource planning, demand management and capacity planning into a holistic framework. Individual firms have been quite successful not only in developing effective manufacturing planning and control (MPC) systems, but also in integrating them with other business functions like finance and human resources through enterprise resource planning (ERP). However, linkages between the MPC systems of supply chain partners are relatively weak (Vollman et al., 2005: 578). And linkages between MPC systems at manufacturers and ‘service’ processes like distribution and back of store are even weaker. Skim the detail at your peril! Far too many logistics ‘decisions’ are made on the basis of lack of understanding of the sheer scale and scope of the intricacies of balancing load and capacity, of coordinating marketing wants and supply chain realities