Data Mesh has grown beyond theory and buzzword. The initial concept as introduced by Zhamak Dehghani in 2019 is described as a socio-technological approach. It has implications on how data is organized and worked with. This keynote will reflect on a Data Mesh implementation journey, on pitfalls and how they can be avoided. In addition to the organizational transformation, we will in particular describe the foundational data platform development, because it’s one of the key success factors.