Hi everybody. I am using Drools 5.1.1 with persistence support. In the Wait State node I only have the option to write a constraint in the rule way, and I have not discovered how to use a variable of the ruleflow in it. Please, see the hypothetical scenario below: variable - a variable of the ruleflow that has the same attribute as the class of the example attribute - an atribute of the class of the example Type - the class of the example Constraint with mvel dialect: Type(attribute == variable.attribute) The error is something like there is no getVariable() in the class Type. Thank you very much for the help Regards, Anderson