This article discusses the focus of teaching in Supply Chain Management, emphasizing the importance of thinking in chains and networks, a unique skill in the logistics sector. The author highlights a recent discussion on the Carbon Border Adjustment Mechanism (CBAM), which places obligations on producers and importers to communicate and report environmental emissions from production processes outside Europe. The article points out potential challenges in implementing CBAM, particularly regarding customs agents and intermediaries in the supply chain, and suggests that such complexities should be addressed in education for future professionals in the field.