Hello all, Is it possible to define the follow rule in a decision table : rule "Activate Promotion" when l : Line( ) not ( Promotion ( code == "HOTBUY" ) from l.promos ) then #do some action end The rule above works perfectly for what I need when defined in a rule file. However, when I try to define it in a decision table so that the 'code' can be feed from a spreadsheet, I use the following values in the rules cells : RuleTable HOTBUYS CONDITION ACTION l : Line not ( Promotion ( code == "$param" ) from l.promos ) System.out.println("$param added"); PROMOTION PROMOTION HOTBUY BESTBUY I'm getting the following parser errors [10,17]: [ERR 101] Line 10:17 no viable alternative at input 'Promotion' in rule "_11" in pattern Line [10,29]: [ERR 101] Line 10:29 no viable alternative at input 'code' in rule "_11" [10,63]: [ERR 102] Line 10:63 mismatched input ')' expecting 'then' in rule "_11" java.lang.IllegalArgumentException: Could not parse knowledge. at com.sample.DecisionTableTest.readKnowledgeBase(DecisionTableTest.java:85) at com.sample.DecisionTableTest.main(DecisionTableTest.java:28) Also in Eclipse IDE, I get the following error : "Unknown error while parsing. This is a bug. Please contact the Development team." NewPromotions.xls Is it possible to use 'from' conditional element in decision tables ? If so, what am I doing wrong. If not, then what's the best approach to implement the rule above in a decision table. I'm running Drools 5.1.0M1 in Eclipse. Help truly appreciated. Gurvinder

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