Solution : https://service.sap.com/sap/support/notes/1019464 (SAP Service marketplace login required)
Key words : 
account management system, support package sp09, reach message maintenance, determine rfc destination, enter message class, bca_mcl_dim_loan                        message number, message short text, message number, message class, short text
Related Notes : 
       
| 1049351 | SAP Banking Services 5.0 SP02 |