Does any one know how to get the external reference of component? The sutiation is allscrews part was assembled to top level assembly but refer to the other component. In Pro/E command is to specify component then choose Info Parent/Child. Based on above operation that I can get which compoent is its parent (Geometry reference). Well, Which toolkit function can gathering the parent information of screw? So far, Iam try with ProSolidExternParentsGet() but it doesn't work. Thanks for your kindly help.