Sending a message to an IBM MQ application from an MQTT client

An IBM® MQ application can receive a message from an MQTT v3 client by subscribing to a topic. The MQTT client connects to IBM MQ using a telemetry channel, and sends a message to the IBM MQ application by publishing to the same topic.

Do the task, Publishing a message to IBM MQ from an MQTT client, to learn how to send a publication from an MQTT client to a subscription defined in IBM MQ.

If the topic is clustered, or distributed using a publish/subscribe hierarchy, the subscription can be on a different queue manager to the queue manager that the MQTT client is connected to.