Huisheng Xu [http://community.jboss.org/people/rebody] replied to the discussion "JBPM 4.3 - org.jbpm.api.JbpmException: couldn't acquire block of ids" To view the discussion, visit: http://community.jboss.org/message/539913#539913 -------------------------------------------------------------- Hi Stefano,   Of course, you could implement your idGenerator for jBPM4.  And using sequence is the previous way of jBPM4 using.  It changed to use JBPM4_PROPERTY since jBPM-4.2.   By the way, some days earlier, you said you will use drools flow instead.  I don't know much about it.  Did it powerful?  Did it easy to use? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/539913#539913] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]