A. Validate that customer and case title fields have not been removed as fields that child cases inherit from parent cases. Add product and case-type fields to the list. Set the closure preference setting to Don't allow parent case closure until all child cases are closed.

B. On the case entity, update the Parent case-Child case 1:N relationship field mapping to include the fields.
Create a business rule on the case entity to prevent the parent from closing if it has one or more open child cases.

C. Create a business rule.

D. Validate that customer and case title fields have not been removed as fields that child cases inherit from the parent cases. Add product and case-type fields to the list. The closure preference setting does not need to be changed. This is default behavior.