Hi, When I call deleteProcessInstanceCascade() have an exception due to the 'FK_HACTI_HPROCI' foreign key constraint. I'm wondering whether the jbpm.history.hbm.xml config file should have a "all-delete-orphan" | <set name="historyActivityInstances" | cascade="all-delete-orphan"> <!-- here, instead of 'all' --> | <key foreign-key="FK_HACTI_HPROCI"> | <column name="HPROCI_" index="IDX_HACTI_HPROCI" /> | </key> | <one-to-many class="HistoryActivityInstanceImpl" /> | </set> Notices i'm testing jBPM4 with mssql with is not supported yet. So, perhaps there is a link. I did not saw any jira related to this behavior. Let me know if i'm wrong or if this is a mssql-jBPM integration bug. Thanks. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4245361#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...