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Support Article

Node level read-only data page displays error after upgrade



Error occurs when referencing a node level datapage in a Validate rule. This occurs after upgrading to Pega 7.3.1 with the following code.

IF !@(Pega-RULES:Utilities).IsInPageList(<value_to_search>, <prop_in _pagelist>, <page_list>)

OR !@(Pega-RULES:Utilities).IsInPageList(<value_to_search>, <prop_in _pagelist>, <page_list>)

Error Messages

The page or property (unspecified) is read-only, and cannot be modified. Calling method (unspecified) Details: (none)

Steps to Reproduce

Refer to a node level read-only datapage in a Validate rule.

Root Cause

The class name of the data page was not resolved in findPage. When the class name was set through the Clipboard API, read-only exception displayed.


As a local-change, add the class name in the Pages and Classes tab where Page-Copy occurs.


Published October 23, 2018 - Updated October 8, 2020

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