Solution : https://service.sap.com/sap/support/notes/1066573 (SAP Service marketplace login required)
Key words :
-> 'business object element assignments' -> 'component assignment, choose 'open business object, node -> 'maintain node assignment', call transaction /bopf/conf_ui, split batch main item, completed outbound delivery split, outbound delivery order, creating outbound del, split batch subitem, imported support package 11
Related Notes :
| 1071644 | BOPF: Manually implementing notes/importing Support Packages |