Today's customers (consumers and enterprise users) have increasingly one thing in common: they are millennials in their prime of spending, who grew up in a technology and service context where shared access is preferred over ownership business models, social media is used as a natural way for self-expression and keeping-in-touch, and sharing of private data is often used to pay for "free" access to services. In that context customer segmentation needs to drastically evolve to be able to capture the essence of millennials and upcoming digital natives. In this article we list key aspects a digital customer segmentation model needs to consider.