Solution : https://service.sap.com/sap/support/notes/355796 (SAP Service marketplace login required)
Key words : 
additional key words apo_scheduling, note corrects functional errors, source code sections, apo delivery scheduling, apo delivery, functional importance, functional effect, transportation scheduling, apo release 3, release >= release 3
Related Notes : 
       
| 382746 | Collective note: Delivery+transportation scheduling with APO | 
| 328972 | APO integration of scheduling | 
| 322509 | APO integration of scheduling "Exit inserted" |