2330199 - FPY1: BCD_FIELD_OVERFLOW CX_SY_CONVERSION_OVERFLOW SAPLFKPZ FKK_PAYMENT_METHOD_SELECT

A dump is raised in SAP transaction FPY1:

Category               ABAP Programming Error
Runtime Errors      BCD_FIELD_OVERFLOW
Except.                 CX_SY_CONVERSION_OVERFLOW
ABAP Program           SAPLFKPZ
|    "BCD_FIELD_OVERFLOW" "CX_SY_CONVERSION_OVERFLOW" 
|    "SAPLFKPZ" or "LFKPZU02"   
|    "FKK_PAYMENT_METHOD_SELECT"
|>>>>>|  IMPORT-RPOST = I_RPOST. 
|    6 FUNCTION     SAPLFKPZ   
|      FKK_PAYMENT_METHOD_SELECT   
|    5 FORM         SAPLFKPMASS    
|      PROCESS_GROUP     
|    4 FUNCTION     SAPLFKPMASS   
|      FKK_FPYM_START_PAYMENT_PROGRAM   
|    3 FUNCTION     SAPLFKPMASS        
|      FKK_SAMPLE_1740            
|    2 FORM         RFKK_MASS_ACT_SINGLE_JOB     
|      CORRESPONDENCE_INTERVALLS     
|    1 EVENT        RFKK_MASS_ACT_SINGLE_JOB
|      START-OF-SELECTION

FI-CA - Contract Accounts Receivable and Payable

Zahllauf, PAYH-RPOST, RPOS, FKK_PAYMENT_METHOD_SELECT, I_RPOST , KBA , FI-CA , Contract Accounts Receivable and Payable , IS-U-CA , Contract Accounts Receivable and Payable , IS-T-CA , Contract Accounting , FS-CD , Collections and Disbursements , IS-PS-CA , Public Sector Contract Accounting , IS-M-CA , Contract Accounts Receivable and Payable , FI-CAX , Non-industry specific contract accounts receivable, payable , Problem