Cannot correlate a message to a single execution

Using the modeler how do you correlate messages from one pool to another? My test model is attached.

test3.bpmn (11.2 KB)

I would suggest you follow this video tutorial first and if you have trouble post with exactly what you’ve tried, what happened and what you expected.

Niall,

Thanks for sharing the video it has helped my understanding of Camunda. I am new to Java so this may seem like a basic question but I hope you are willing to help. At this point https://youtu.be/8SYEc3dHnM4?t=891 in the video it is describing creating a Java delagate which is also mentioned here https://docs.camunda.org/manual/latest/user-guide/process-engine/delegation-code/. I have figured out how to use Postman to post a BPMN model and a embeded form. However,
I am not sure where to put the Java delagate once I create it so that when I upload my BPMN model it knows how to reference it. I am using the embeded Tomcat version of Camunda.