The topics CQRS and Event Sourcing are often viewed primarily as aspects of data handling, management and storage. This perspective often comes first for obvious reasons: a Microservices system that uses Read Models and an Event Store handles data differently, compared to other patterns. However, Event Sourcing also causes another important difference: communications are vastly simplified, since channels are predetermined by the organized distribution of event information in the system. In this talk, Oliver illustrates general advantages of CQRS and Event Sourcing, but focuses specifically on the positive consequences for ordered communications that benefit distributed service environments.