Logistic flows, business process management and collaboration remain a major problem in the supply chain. In this article we are going through this issue to propose an integrative and collaborative approach. More precisely, we develop a cloud-based and service-oriented bus for business interoperability for logistic flows. Though the bus, we define protocols and standards allowing the integration of data formats which are for the most proprietary and heterogeneous. The bus also allows data sharing between processes and actors involved in the flow. Key features of this bus are event handling and processing from the physical flow and real-time notification to stakeholders.