Solution : https://service.sap.com/sap/support/notes/98108 (SAP Service marketplace login required)
Key words :
additional key words vl01, attached source code, partial delivery agreement, entire delivery group, delivery group, correlated due, missing availability, item category, tvlp-mng0p, space = accept
Related Notes :
| 127993 | Reject 0 qty when creating, allow it when changing |
| 52694 | Coll. note for quantity correl. in Rel. 3.0C-4.5B |