Solution : https://service.sap.com/sap/support/notes/1037407 (SAP Service marketplace login required)
Key words : 
type i_str_prod_hdr                type sfipr_product_header i_tas_field                    type tfipr_field_check i_tas_field_mult              type tfipr_field_mult_check i_tas_field_val                type tfipr_field_val_check i_tas_funct                    type tfipr_funct_check i_tas_matrix                  type tfipr_matrix_check default, sy-subrc e_tab_return                  type bapiret2_t pass, product header data field attribute multiple-, restrictions feature attribute matrix attribute, utilities -> table contents -> create entries, processing type, note concerns missing product checks, abap statements return table, payment plan change feature, solution import support package 2
Related Notes : 
       
| 1049351 | SAP Banking Services 5.0 SP02 |