Solution : https://service.sap.com/sap/support/notes/619462 (SAP Service marketplace login required)
Key words :
extend function module bkk_get_rtrn_pmnt_note_lines, maintain maintenance view v_tbca_proc_eve, maintain maintenance view v_tbca_proc_ctrl, extend transparent table tbkkg34k, create data element bca_dte_flg_empty_note, base table tbkkg34k, function group fbvg, extend view v_tbkkg34k, development class fkbp, 'object explained sufficiently
Related Notes :
| 587923 | Create or change data element in ABAP dictionary |
| 578319 | Addition of parameters to function module |