Solution : https://service.sap.com/sap/support/notes/774719 (SAP Service marketplace login required)
Key words :
call function 'fi_dme_characters' importing e_cr = ld_cr e_lf = ld_lf, customer-specific function group, function module fi_paym_file_write cr, payment medium workbench solution, data medium exchange engine, payment medium creation online, data = a_record view = out_view, codepage 8400 out_ce = cl_abap_conv_out_ce=>create, t_file_output-length = t_file_output-length / 2, field-symbols <xptr> type
Related Notes :
| 855841 | Payment medium in a Unicode system |