Lean principles can enhance productivity and efficiency in a Scrum framework by promoting continuous improvement, waste reduction, and customer focus. Practices like Kaizen encourage teams to reflect on processes and make incremental improvements during Sprint Retrospectives. Value stream mapping helps identify and eliminate non-value-added activities, streamlining workflow and enhancing flow efficiency. Just-in-time delivery minimizes inventory buildup and maximizes responsiveness to changing customer needs. Additionally, emphasizing customer value ensures that Scrum teams prioritize features that deliver tangible benefits, aligning development efforts with business objectives. By integrating Lean principles, Scrum teams can optimize their processes, minimize waste, and deliver value more effectively.