Solution : https://service.sap.com/sap/support/notes/191939 (SAP Service marketplace login required)
Key words : 
additional key words mcvbel-olfmng, shipping due date index, open schedule line quantity, schedule line level, -defined info structures, delivery-due list, mcvbel-olfmng, delivery schedule, fields olfmng, structure mcvbel
Related Notes : 
       
| 204130 | SIS update: Collective note | 
| 125763 | SIS: Collective note - component supplier | 
| 121096 | Plan.all.qty incorrect, sched.agreemnt, chg. LF | 
| 84112 | Schedule for scheduling lines | 
| 64453 | Comp.supplier: Wrong SD document indices and reqs |