Issue with Create Case smart shape using property. Creating a Flow Problems.

Error Message: com.pega.pegarules.pub.runtime.IndeterminateConditionalException: ** @hasMessages(Local.pyTopCasePage) null

Pega 7.3.1

1. While creating a Book case, setting a class value "ABB-ReserveIt-Work-GuestReview" in a property "ClassNameOfCase" i.e. pyDefault data transform.
2. Added a "Create Case" step in 3rd stage and setting

• selected "create case" radio button
• In "Create the following case" selected "Other"
• In "Class", entered ".ClassNameOfCase" Property
• In "Starting process", Default value is coming "pyStartCase"
• In "Property to store ID of case", Entered ".GuestReviewID" Property.

Please guide.........

Thanks in Advance........

***Edited by Moderator: Pallavi to update platform capability tags***