Solution : https://service.sap.com/sap/support/notes/151398 (SAP Service marketplace login required)
Key words : 
additional key words mrhr, subsequently entering delivery cost, 'edit -> delivery costs -> planned ->, prerequisites solution refer, business volume data, business volume update, delivery costs, multiple update, purchase orders, purchase order
Related Notes : 
       
| 208447 | Perf.: Statistics preparation & update in purchasing (EINS) | 
| 152725 | Collective note: Subsequent settlement (Purch.) Release 4.5 | 
| 104668 | Collective note: Subsequent settlement (Purch.) Release 4.0 | 
| 40147 | Collective note: Subsequent settlement (Purch.) Release 3.0 |