Pega Platform supports MQ and JMS message queue integration.
MQ connectors and services provide connectivity between your Pega application and an IBM WebSphere MQ server. Use an MQ connector rule to put a message in a queue and optionally wait for a response message. Use an MQ listener to wait for messages to arrive in a queue and forward them to an MQ service rule for processing.
Use JMS connectors and services to access message queues and topics that are defined by the Java Message Service API of the Java Platform, Enterprise Edition. You can publish messages to any JMS-compliant message provider and use these messages to create or update cases