YOUnite uses ActiveMQ (AMQ, https://activemq.apache.org ) as its message broker for communication between the YOUnite MDM API service, and the adaptors (Adaptors).
The adaptors, message broker Message Broker (bus), and the router portion of the YOUnite Data Hub make up the "Adaptor Layer" of the YOUnite MDM runtime stack with a primary task to synchronize source entities throughout the entire YOUnite ecosystem.
Background
Recipes for Configuring the Message Broker
Configuring Message Broker for YOUnite
Communicating with Message Bus
Message broker configuration for YOUnite AdaptorCommunicating with Message Bus from YOUnite UI