Building software in the times of cloud computing can be quite a challenge. Even more so when you begin to change the fundamental paradigms of how this software is operated. In this talk, we’re going to share our insights on building and operating a Software as a Service solution for the reinsurance market, focusing on the role of SAP Cloud Platform. We’ll also share our opinion on how to start writing software in the modern SAP ecosystem. Whether you’re a seasoned SAP veteran or completely new to the topic: Our insights that we gathered over the last two years will help you get a better understanding on how to extend the SAP core, while keeping the core clean.