Solution : https://service.sap.com/sap/support/notes/125700 (SAP Service marketplace login required)
Key words : 
additional key words component suppliers, component supplier handling, attached advance correction, fields mcvbel-vsmng_l, key figures, mcvbel-vswrt_l, delivery slips, scheduling agreement, program error, solution implement
Related Notes : 
       
| 204130 | SIS update: Collective note | 
| 158357 | Deliveries: GETWA_NOT_ASSIGNED, OLFMNG not filled | 
| 135922 | Sales document: Statistics structures are not filled | 
| 127235 | Delry service for component supplier MCVBEL-VSMNG_L | 
| 125763 | SIS: Collective note - component supplier | 
| 84112 | Schedule for scheduling lines |