A very stubborn problem,longing for your help
I encountered a very troublesome problem regarding MM customizing.
The T-code OMT3B will guide to Dialog layout customizing of the transaction MM03,
which is material master display transaction.
The customizing screen shows you all the screens in MM03, one of which is subscreen
0001,which is a blank screen without nothing including flow logics.
So my problem is what effect the subscreen 0001 takes.