Thank you Mr Joan mas for your help.Let me try with the exit.But before customizing can you confirm the following things to me.
If we press F1--technical settings on field batch number in item---sales A tab(it gives the screen numbers of 4451 and 4003--at bottom)
what is 4003--is it sub screen number??
so where i need to apply my SHD0 settings--in 4451/4003--pl help..(but 4003 screen--no option given by system as output only)
I observed in one more client 000--surprisingly this batch number is in display mode--How it is possible??
can you help here for better understanding..
Phanikumar