SAP Function SUSR_FIELD_VALUE_REQUEST_RFC - F4 help for fields that are only known at runtime

Parameter Reference Type Length Default Optional Text
CALLBACK_FORM SYST-XFORM C 30 SPACE X Form for callback before F4 start (-> long docu)
CALLBACK_PROGRAM SYST-REPID C 40 SPACE X Program for callback before F4 start
DISPLAY DDREFSTRUC-BOOL C 1 SPACE X Override readiness for input
DYNPNR SYST-DYNNR C 4 SPACE X Screen Number
DYNPPROG SYST-REPID C 40 SPACE X Current Program
DYNPROFIELD HELP_INFO-DYNPROFLD C 132 SPACE X Name of screen field for value return
FIELDNAME DD03V-FIELDNAME C 30 Field name from Dictionary
MULTIPLE_CHOICE DDREFSTRUC-BOOL C 1 SPACE X Switch on multiple selection
SEARCHHELP HELP_INFO-MCOBJ C 30 SPACE X Search help as screen field attribute
SHLPPARAM DD32P-FIELDNAME C 30 SPACE X Search help parameter in screen field
STEPL HELP_INFO-STEPL I 4 0 X Steploop line of screen field
TABNAME DD03V-TABNAME C 30 Table/structure name from Dictionary
VALUE HELP_INFO-FLDVALUE C 255 SPACE X Field contents for F4 call

Parameter Reference Length Optional Text
RETURN_TAB DDSHRETVAL 328 X Return the selected value

Exception Text
FIELD_NOT_FOUND Field does not exist in the Dictionary
INCONSISTENT_HELP F4 help for the field is inconsistent
NO_HELP_FOR_FIELD No F4 help is defined for the field
NO_VALUES_FOUND No values found