You can double-click a WSDL file in the Project Explorer to view and edit it in the WSDL Editor. Double-click an operation or port type to highlight it in the editor.
Your WSDL changes can affect the references in BPEL files, and you may need to resolve them. For example, if your BPEL process refers to a partner link role name that you change, the role name is marked as Unresolved Reference, and you must select a new name from the Properties view to ensure your process is valid.