Solution : https://service.sap.com/sap/support/notes/394673 (SAP Service marketplace login required)
Key words : 
s_test   check runs_vendor vendor rebate arrangement, run correction report zcorkonp attached, additional key words subsequent settlement, checkselection textss_custom customer arrangement, message class zm770 report &1, message class zmn770 report &1, sales volume-based rebate, check open documents, volume-based rebate, business volume update
Related Notes : 
       
| 183379 | Composite SAP note subsequent settlement (Purchasing) 4.6 | 
| 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 |