Hello, I have defined a Drools custom operator which works great in Drools 5.4.0 and I am able to configure it to configure itvia spring Spring as follows. <bean id=&lt;b>"inListED" class="org.facs.ncdb.drools.utils.InListEvaluatorDefinition" */> <drools:kbase id="breastMeasureKBase"> <drools:resources> <drools:resource type="DRL" source="classpath:rules/mastrt_sequential_test.drl"/> </drools:resources> <*drools:configuration> <drools:evaluators> <drools:evaluator name="inlist" ref="inListED" /> </drools:evaluators> </drools:configuration>* </drools:kbase> I am trying to do the same in Drools 6.x! How do I accomplish this? I cannot find any documentation. <bean id="inListED" class="org.facs.ncdb.drools.utils.InListEvaluatorDefinition" /> <kie:kmodule id="measure"> <kie:kbase name="MASTRT" packages="MASTRT"> <kie:ksession name="breastMeasureKSession" type="stateless"> <kie:configuration> * <drools:evaluators> <drools:evaluator name="inlist" ref="inListED" /> </drools:evaluators> * </kie:configuration> </kie:ksession>/> </drools:kbase> </kie:kmodule> I need to replace the *<drools:evaluator> *tag for drools 6.x? Any ideas how to configure Drools Custom operator using Spring? I appreciate in advance! Thanks Matt'M -- View this message in context: http://drools.46999.n3.nabble.com/Drools-6-0-1-with-Spring-Custom-Operato... Sent from the Drools: User forum mailing list archive at Nabble.com.