Dear Naren,
-From my screen 3 ,now i understood why system is showing as 0-open due to no-open quantity for billing--Thanks for this.
But Why system is showing as Not referenced for some line items where the entire Sales order created without any reference???Why it is showing for some line items only???
Pl see the screen shot of Complete Header for your reference.(Obviously it will show as Being processed due to some line items has shown as ""Not completed"")
Pl do find and let me know..
Phanikumar