Doing the Camunda BPM tutorial on Youtube and in part 7 Tutorial: Messaging with BPMN (Video 7) - YouTube I try to send a message to my process that I have started with Postman. I get the error
"type": "RestException", "message": "org.camunda.bpm.engine.MismatchingMessageCorrelationException: ENGINE-13031 Cannot correlate a message with name 'NiallKnows' to a single execution. 2 executions match the correlation keys: CorrelationSet [businessKey=1, processInstanceId=null, processDefinitionId=null, correlationKeys=null, localCorrelationKeys=null, tenantId=null, isTenantIdSet=false]"
When I look at the history of the process it seems that a new token is created after the first Send Task. Is that what causes this error and what should I do to resolve this?