Camunda microservice issue

Im facing issue when am trying to connect the next microservice with camunda workflow. Actually I have started the start event with start process by message - message correlation in my first microservice using external task handler. The next service is not invoked with task handler running on same port but different microservice. Can i know how to invoke second service also

Hello @Jane can you post/attach your process flow? It may help in diagnosing the issue