This study proposes to examine the role of information technology customization in a logistics and supply chain context. As technology continues to be an enabler of collaborative logistics and supply chain relationships, supply chain partners become more dependent upon information technology and the information shared, creating inter-dependence and a shared destiny (Power, 2005). Understanding that many firms today likely develop and deploy disparate information systems, supporting many different business activities and processes (March , Hevner and Ram, 2000), information sharing among supply chain partners calls for some level of information technology customization due to the varying specializations or differences in capabilities across firm boundaries (Charlie and Rebentisch, 2003). But what exactly defines customization and how do firms determine the appropriate level of customization of their information technology resources is necessary to share appropriate information and integrate with their supply chain partners? A grounded-theory approach will be used.