I have a basic problem that I don't understand, it's obviously an error from me. I use drools 4.0.7. My application creates bills and makes reduces on it. I use a ruleflow that executes rules named "REMISE_IMMEDIATE" first and "REMISE_TICKET" after. Example of 2 rules : rule "ID_150_TEST" ruleflow-group "REMISE_IMMEDIATE" when r : Regle (numRegle == "1"); a : Article (regles contains r); t : TicketCaisse( ); l : LigneTicket($n : numeroLigne, $q : quantiteTotal,ticket == t && quantiteTotal > 0 && article==a && remiseChoisie == true); then System.out.println("test 1 : " + t.getTotalTicket()); t.setTotalTicket( 80 ); end rule "ID_150_TEST_C" ruleflow-group "REMISE_DIFFEREE" when t : TicketCaisse(totalTicket >= (new Double(100.0)) && totalTicket <= (new Double(200.0))); then System.out.println("test 2 : " + t.getTotalTicket()); IAvantageTicket newAvtgTicket = t.addAvantageTicket("BAT", 2, 20.0, t.getNumeroMagasin()); end Here is my case : A bill (ticket in french) has an amount of 100. A reduction should set this amount at 80 with the first rule An advantage shouldn't be given on the Object Ticket because of the condition totalTicket >= (new Double(100.0)) && totalTicket <= (new Double(200.0)) Result : The second rule give the advantage on the Object Ticket and the System.out.println"test 2 : " + t.getTotalTicket()); give 80 !!! I run my JUNIT test with the Debug mode in Eclipse and the object TicketCaisse in the working memory has an amount of 80. So I don't understand why the second rule has been executed... I try to do update(t); in the first rule but it doesn't work. Has someone any idea ? I join the pojo TicketCaisse. http://www.nabble.com/file/p19290828/TicketCaisse.java TicketCaisse.java -- View this message in context: http://www.nabble.com/Update-property-tp19290828p19290828.html Sent from the drools - user mailing list archive at Nabble.com.