Solution : https://service.sap.com/sap/support/notes/128743 (SAP Service marketplace login required)
Key words : 
system generates error message kd 211 ', prevents double account numbers, find settled values, line item distribution, field p_update determines, implement report zzcorr01, executing report rkacshow, capital investment order, line item settlement, source code corrections
Related Notes : 
       
| 397799 | INFORMATION: CO-OM-OPA (Order & Project Accounting) | 
| 314412 | Error in report RKAABRNRCHK | 
| 171359 | Sttlmt rule: sttlmt no. set incorctly when copying |