Final answer:
It is true that properties become available to a case immediately when pyDefault invokes pySetFieldDefaults as part of Pega's case lifecycle management.
Step-by-step explanation:
When pyDefault invokes pySetFieldDefaults, it is true that properties are immediately available to the case when it is created. This instantiation sequence is part of Pega's case lifecycle management. The pyDefault rule runs when a new case is created, and it calls pySetFieldDefaults to set the initial values of the properties that will be used throughout the case's lifecycle.Data transform use pySetFieldDefaults to initialize any page properties you create manually outside of the Case Designer. Because the by default data transform is always invoked when a case is created, by default includes the Apply Data Transform action. This ensures that pySetFieldDefaults is also invoked when a case is created.