Solution : https://service.sap.com/sap/support/notes/614422 (SAP Service marketplace login required)
Key words :
combination billing type + delivery type + delivery item category, billing type + delivery type + delivery item, calculation base 'delivery item', respective default billing type, random shipment cost billing, 'create billing document' transaction, transaction 'create shipment costs, default billing type, delivery items relevant, current billing type
Related Notes :
808132 | VF01: no delivery item related allocation at Intercompany |
746552 | INFORMATION: => LE-TRA-FC-BIL (Billing) |
554054 | Incorrect Cost Dist. when billing shipment costs |