Tun Mang [http://community.jboss.org/people/tunmang] replied to the discussion "jBPM 4.3 starting a sub-process after a state node will fail" To view the discussion, visit: http://community.jboss.org/message/535506#535506 -------------------------------------------------------------- Hi Maciej Swiderski and Huisheng Xu : Thank all of you so much. My problem is finally resolved after changing the settings to "newTxRequiredCommandService" in "jbpm.default.cfg.xml" :   <process-engine-context>   ....       <object class="org.jbpm.pvm.internal.id.DatabaseIdComposer" init="eager" />       <object class="org.jbpm.pvm.internal.id.DatabaseDbidGenerator">         <field name="commandService">          <ref object="newTxRequiredCommandService" />        </field>      </object>        <id-generator />   ....   </process-engine-context> Your help is very appreciated. :) Tun Mang -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/535506#535506] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]