In this step, you can use a customer enhancement project to define your own value fields for use in drill-down reports. The drilldowns have to be defined for these fields.
Standard reporting for investment programs displays primarily budget values, plan values, and assigned values. You can also define your own drilldowns, in which you can define different mathematical combinations of these fields.
Develop a customer enhancement project based on the SAP standard enhancement project AAIP0002.
For more information, see the documentation for SAP enhancement AAIP0002 (transaction CMOD).