More about When Condition rules
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You can compare the value of one property reference against a literal constant, or against the value of another property reference. If you define more than one comparison, you can combine the results with and, or, and not operations to determine the final true/false outcome.
Each activity step may reference none or several when condition rules, as preconditions for a method, or transitions between the just-completed method and the next step.
As a precondition, a condition rule determines whether the method in the activity step executes or skipped. Referenced in a transition, a condition determines what activity processing flows after completion of the current activity step.
To execute a when condition rule in an expression or in the context of Java code, call the standard function callwhen() in the Pega-RULES Default library.
Click Actions > View Java to view the generated Java of a rule. You can use the Java code to debug your application or to examine how rules are implemented.