Solution : https://service.sap.com/sap/support/notes/635077 (SAP Service marketplace login required)
Key words : 
start transaction se37 select function module frml702_frml_uexit_change_para change navigate, tab title 'import' set indicator 'optional', i_actpos   type   sytabix set indicators 'optional', terms recipe information system reason, enhanced search function 'recipe, incorrect search dialog, program error solution 1, parameter i_okcode add, recipe workbench, parameter save
Related Notes : 
       
| 631420 | RMGMT210: Corrections in Support Package 04 |