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Support Article

Declare Expression inconsistent with "whenever input change"



Declare-Expression rule is not firing.

Error Messages


Steps to Reproduce

Create a Declare-Expression rule configured with the following expression
Set .MyProp = Value of @(Pega-RULES-Utilities).IsInPageListWhen("MyWhenRule"), .MyPageList)

Root Cause

The Declare-Expression rule doesn't know which are the dependent properties since they are parameters to a function.


This issue is resolved by listing the dependent properties in the "Additional Dependencies" list on the "Change Tracking" tab of the Declare-Expression rule.


Published January 31, 2016 - Updated October 8, 2020

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