This paper reviews the results of a three year study into Internet enabled ERP implementations around the world. The study identified different stages of growth with differing sets of problems at each stage. A framework for e-business change was used to evaluate the mature stage of e-ERP in six international organisations. The emergent model proposes various antecedents to successful e-business change management in ERP environments. A case study of the first B2B e-business integration with Dell Computer Corporation and its largest corporate customer is examined in the context of this model. The case demonstrates the integration of ERP and non-ERP systems, using Web-based technologies, to optimise an overall B2B value chain. Finally the paper emphasises the role of change management and cultural readiness when adopting e-business solutions and identifies critical areas for future research.