Jan, - I don't see the variable 'subProcessResult' in the subprocess. Is it set via the api somewhere? - I only used variable passing with mapped-names (different name in the subprocess). Not doable with a lot of processvariables, I know - The variable subProcessResult is the same for all subprocesses. I would change that to prevent e.g. concurency issues So I would have try something like this: | <process-state name="Ontvankelijkheidstoets"> | <description> | In deze fase wordt bepaald of de aangeleverde gegevens compleet en bruikbaar zijn. Eventueel word | t er gewacht op documenten die middels de post worden aangeleverd. | </description> | <sub-process name="preConditionCheckUL" binding="late"/> | <variable name="chosenInstitution" access="read" /> | <variable name="chosenEducation" access="read" /> | <variable name="studentId" access="read" /> | <variable name="eduType" access="read" /> | <variable name="regYear" access="read" /> | <variable name="regFirstYear" access="read" /> | <variable name="pasportSendMethod" access="read" /> | <variable name="pooledActors" access="read" /> | <variable name="OntvankelijkheidstoetsResult" access="read,write" mapped-name="subProcessResult" /> | <transition to="Resultaat OT" name="success"/> | </process-state> | btw, I you make a small, minimal unit test with embedded processdefinition as a string and the decisionhandler as innerclass, I can test it here. The jBPM unittest for this works, but it also uses the mapped-name View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4196516#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...