Hi JL
Check OMJJ. In the Movement Type detail, check if is Debit or Credit. Credit (H) movements are consider as consumption. You can change this field and future movements are consider as debits..
Check this example.
+ Z71 is Procurement if 'S' is set in OMJJ
+ Z71 is Consumption if 'H' is set in OMJJ
.
Arturo.