This research aims to enhance current knowledge of supply chain planning (SCP) by analyzing the importance of collaboration, information exchange and a supporting information system in its successful execution. The issues are examined through a case study from international manufacturing company, Volvo Powertrain, which operates in automotive industry through its worldwide manufacturing network. This research reveals that collaboration is a complex and important issue of SCP, and occurs simultaneously in vertical and horizontal dimensions. It is important to select strategic partners and to develop structured work processes and routines. The main objective of collaboration is to determine common goals and objectives and to facilitate the exchange of information and these together drives the performance of a supply chain. A sufficient information system supporting the SCP is vital to facilitate collaboration, and information exchange between the different supply chain participants. However, currently in Volvo Powertrain quite many phases of SCP are completed without appropriate and integrated information systems and the process itself contains several manual phases. This study is explorative in nature and more empirical data, from similar and other research settings, is needed to further validate the findings. However, its empirical findings strengthen research discipline knowhow of SCP in global manufacturing companies. This research provides insight to managers and practitioners on how to coordinate operations planning and control (OPC) across organizations within the supply chain to enhance efficiency and effectiveness. The SCP procedures described in this research work also are valuable for Volvo Powertrain and other industrial actors to further develop processes to respond on competitive pressure. This research work empirically demonstrates, as very few before have done so, how OPC can be coordinated across the supply chain.