Hi Shwetank,
For IBP for inventory input and output key figures, please refer to the notes below.
Input Key Figures:
http://help.sap.com/saphelp_ibp40fp01/helpdata/en/c0/046454cdeee530e10000000a44538d/frameset.htm
Output Key Figures:
Output Key Figures for Inventory - SAP Integrated Business Planning - SAP Library
When working in a single planning area with demand and supply, inventory takes the consensus demand KF and convert it to the IOFORECAST KF as an input to the optimization.
As an output, IBP for supply can take the inventory KFs RECOMMENDEDSAFETYSTOCK and TARGETINVENTORYPOSITION as inputs as target inventory values, not projected, because supply generates its own projected inventory values that are more related to the replenishment supply cycle.
Let me know of any additional questions.
Regards,
Alexis Lozada
Senior Product Specialist