We have a database field to hold year and month together in the format YYYYMM (example 201201). We are creating a report using this field on the selection screen, so we need to provide F4 help for this month field. The following code will provide the F4 help for month.
*&---------------------------------------------------------------------*
*& Selection Screen
*&---------------------------------------------------------------------*
PARAMETERS: p_month TYPE isellist-month.
*&---------------------------------------------------------------------*
*& At Selection Screen Event
*&---------------------------------------------------------------------*
AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_month.
CALL FUNCTION 'POPUP_TO_SELECT_MONTH'
EXPORTING
actual_month = sy-datum(6)
IMPORTING
selected_month = p_month
EXCEPTIONS
factory_calendar_not_found = 1
holiday_calendar_not_found = 2
month_not_found = 3
OTHERS = 4.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF. When we press F4 help for the month field, the following popup will be displayed.
