Hi Pramod,
This question has been answered several times in the forum. APO doesn't track tranges natively. You have to get an "Add-On".
See link:http://wiki.sdn.sap.com/wiki/display/SCMCS/Supply+Chain+Management+-+Details+on+Service+Offerings and look for SAP APO Change Monitor to see the presentation.
Best Regards,
Mike
