FDMEE provides the framework to drill through from the EPM System applications back to the general ledger from the Oracle Enterprise Performance Management System source. Drill through works only for data loaded through FDMEE.
For example, you can drill through from where data was loaded from E-Business Suite to Financial Management, and then from Financial Management to Essbase. When you viewing Essbase data in Oracle Smart View for Office, you can drill from the Essbase data cell and go to the FDMEE landing page.