Solution : https://service.sap.com/sap/support/notes/334357 (SAP Service marketplace login required)
Key words : 
additional key words apo_scheduling, symptom delivery, transportation scheduling, program error, purchase orders, sales orders, solution implement, attached corrections, prerequisites, /3 customizing
Related Notes : 
       
| 382746 | Collective note: Delivery+transportation scheduling with APO | 
| 336985 | Master data changes without effect for scheduling | 
| 328972 | APO integration of scheduling | 
| 322509 | APO integration of scheduling "Exit inserted" |