You can edit existing customer scenarios using BEx Web Application Designer from SAP NetWeaver BW 3.x (a component of SAP NetWeaver 7.2) and BEx Web Application Designer from SAP NetWeaver 7.2.
Some Web items from SAP BW 3.x are no longer available. These include the Role Menu Web item, which has been replaced by the SAP NetWeaver Portal roles, and the Alert Monitor Web item, which was replaced by the universal worklist (also in SAP NetWeaver Portal).
For more information, see the FAQs for SAP NetWeaver BW at service.sap.com/bifaq.
General Practices with Migration
The entire Web application is always migrated, not Individual Web items. For information, see Web Templates (above).