Hi Guys, Finally I am able to login to jbpm-console page by adding records in JBPM_ID_MEMBERSHIP table for the new users I created and assigned them to a group by groupid as a foreign key. Now I am getting exception at the time of process start. First time when I start a new process, it works fine. There is no exception on the console. Second time when I start the same process version, exception is generated on the console saying... anonymous wrote : 15:32:26,701 DEBUG [JbpmContext] closing JbpmContext | 15:32:26,701 DEBUG [Services] closing service 'persistence': org.jbpm.persistence.db.DbPersistenceService@1fa2b3e | 15:32:26,701 DEBUG [DbPersistenceService] committing hibernate transaction | 15:32:26,717 WARN [JDBCExceptionReporter] SQL Error: 1, SQLState: 23000 | 15:32:26,717 ERROR [JDBCExceptionReporter] ORA-00001: unique constraint (RND.SYS_C0014481) violated | | 15:32:26,717 WARN [JDBCExceptionReporter] SQL Error: 1, SQLState: 23000 | 15:32:26,717 ERROR [JDBCExceptionReporter] ORA-00001: unique constraint (RND.SYS_C0014481) violated | | 15:32:26,732 ERROR [AbstractFlushingEventListener] Could not synchronize database state with session | org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update | at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:71) | at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) | at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:249) | at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:92) | at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:87) | at org.hibernate.jdbc.AbstractBatcher.prepareBatchStatement(AbstractBatcher.java:218) | at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2106) | at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2503) | at org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:51) | at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248) | at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232) | at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:139) | at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.ja | va:297) I got this exception only with oracle database. With hypersonic database, there was no exception. Please help. What could be the cause? Thanks Naseem View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4047179#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...