About Copy and Constraint Pick Maps
Siebel CRM can use the following types of pick maps:
Constraint pick map. Siebel CRM applies the value from a field in the parent business component as a search specification on a field in the picklist business component.
Copy pick map. Siebel CRM copies the value of a field in the picklist business component to a field in the parent business component.
The Pick List Field property specifies the field in the picklist business component. The Field property specifies the field in the parent business component.