Hi,
FUNCTION FIELD_EXIT_BKTXT.
*"----------------------------------------------------------------------
*"*"Local interface:
*" IMPORTING
*" REFERENCE(INPUT)
*" EXPORTING
*" REFERENCE(OUTPUT)
*"----------------------------------------------------------------------
If sy-tcode = 'FV50'.
if input is not initial.
**write a select single and check whether the manual entry given by user exists in your F4 table
**If Sy-subrc eq 0.
then proceed the user further
**Else.
MESSAGE 'Please Select the enter from F4 Help ' TYPE 'E'.
**Endif
endif.
Endif.
ENDFUNCTION.
