In the following rule, the element MICompanyMarketClassification is capitalized due to the MI portion being an acronym for Mortgage Insurance. This comes from our enterprise data model and is not something I can change. rule “R1234” dialect “java” when MortageInsurance{ MICompanyMarketClassification in (“2”, “3”) } then system.out.printLn(“something”); end The rule refuses to compile, giving a message “Unable to Analyse Expression MICompanyMarketClassification == "2" || MICompanyMarketClassification == "3": [Error: no such identifier: MICompanyMarketClassification] [Near : {... MICompanyMarketClassification ....}]” I assume this is caused by the capitalized first letter? Anything I can do to fix the issue or work around it? Drools 5.2 community edition *Tom Murphy *Systems Architect Wells Fargo HCFG - CORE Deal Decisioning Platform 800 S. Jordan Creek Parkway | West Des Moines, IA 50266 MAC: X2301-01B Office: 515 324 4853 | Mobile: 515 423 4334 *tom.e.murphy(a)wellsfargo.com* <tom.e.murphy(a)wellsfargo.com&gt; This transmission may contain information that is confidential and/or proprietary. If you are not the individual or entity to which it is addressed, note that any review, disclosure, copying, retransmission, or other use is strictly prohibited. If you received this transmission in error, please notify the sender immediately and delete the material from your system. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users