The Electronic Data Interchange (EDI) is a fast and efficient way to transfer business documents. It allows optimization of logistic information flows and their synchronization with the physical flows. This study aims to explore how the automotive industry in Morocco is using the EDI technology to optimize flows and ensure in-time production (JIT) and how to avoid waste during the manufacturing process (Lean). It will compare the EDI practices in Morocco with international standards in Europe and Asia and deduct the difficulties and the implications for Moroccan SMEs.