Hi Koen, thank you for your reply and please accept my apologies for mixing up a term. It is indeed not a task node, which cannot hold a sub-process, but a process-state-node as exemplified by the following snippet. | <process-state name="subProcessStateNode"> | <sub-process name="childProcessName"></sub-process> | <transition to="nextNode"></transition> | </process-state> | The child as well as the parent process are persisted to the database, but the column _subprocessdefinition in the table jbpm_node doesn't hold a valid entry for the node "subProcessStateNode". Regards, Kurt Regards, Kurt View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3989993#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...