It does not always mean that all functions and units need to work on the same system. Better coordination of processes and (meta)data can already create this alignment. Many One programs are implemented with a focus on (IT) cost-saving. However, our experience has shown that even bigger business benefits can be recognized through the harmonization of processes. Only when the end goal of the harmonized operations is well defined, it becomes possible to balance process harmonization and system consolidation in the right way.