Solution : https://service.sap.com/sap/support/notes/111031 (SAP Service marketplace login required)
Key words : 
additional key words co01, debits/credits indicator, -product resbd-denmng, negative requirement quantity, quantity withdrawn positively, quantity withdrawn, negative cor1, issue quantity, goods movement, production order
Related Notes : 
       
| 147037 | Quantities not rounded after availability check | 
| 125264 | CN752 Message not correct for negative requirements | 
| 116309 | Filtering component overview by missing part | 
| 112722 | Disply of reservatns f.prod. order w.negtive comp.s |