Sebastian Rettelbach has over eight years of experience with SAP in development and consulting. He joined SAP in 1998 as a developer focusing on System Landscape Optimization. Since then, Sebastian has specialized in harmonizing and consolidating SAP systems and has developed and designed technical tools to achieve data and structure harmonization in live SAP systems. Sebastian has also gained consulting experience in international reorganization projects. Currently, Sebastian is working as a development project manager in the System Landscape Optimization team of SAP Custom Development.