This document discusses Germany's experience with spending reviews over the past few years. It provides an overview of how spending reviews are organized in Germany, including establishing working groups comprised of various ministries. The document outlines lessons learned, such as the importance of political will and collaboration between ministries. It also gives examples of recommendations from past spending reviews, such as establishing clear goals and common reporting standards. In conclusion, the document emphasizes factors that matter most for effective spending reviews, including preparation, framework conditions, and follow-up processes.