Solution : https://service.sap.com/sap/support/notes/53378 (SAP Service marketplace login required)
Key words : 
cumulative delivered quantities, additional key words, prerequisites program error -, cumulative delivered quantity', statistics setup, scheduling agreements, solution corrected, source code, report sdlipl01, quantity '
Related Notes : 
       
| 61083 | Wrong cum. delivered qty in batch determination | 
| 60113 | Component suppl. processing: Incoming order stats. | 
| 60061 | Stats setup Cumulative issued/delivered quantities |