2-step picking ( storage location problem)

Hi all!

I have question about 2-step picking and a little problem about that. I create 2 step picking with group (VL06O - for picking). Then system create TO from WH with T.code LT0E. problem is that system get material from storage location where I don't want to pick. I only want to pick from Sloc 8030 and not 8040. Ofcourse i must delete all materials which have been picked from 8040 because system dont allow me. so I want to prevent in the first that system dont allow to pick from 8040.

Thanks for any solutions