Solution : https://service.sap.com/sap/support/notes/968245 (SAP Service marketplace login required)
Key words : 
symptom nominal interest rates, terms cash flow, attached program correction, interest capitalization, program error, annuity loans, annuity loan, ff10 reason, solution implement, capitalized
Related Notes : 
       
| 1240000 | Annuity loan: Incorrect repayment amounts | 
| 988305 | Annuity loan: Incorrect repayment settlement | 
| 964555 | Annuity loan: Incorrect repayment amount in first period |