F4 help for a field Based on the data in the other fields

Question

Hi,
We have a selection screen(Report Program) with three fields Bill Number, Billing Date and Plant. Bill Number and Plant are stored in one table and Bill Number and Billing Date are stored in another table, Bill number is common in Both the Tables. We want to  have a F4 Help for Bill Number based on Both the Plant and Billing date. For this we are trying to get it thorugh Search Help,, Can any of you help us in this context.
Thanks & Regards,
Satish P.

Answer 1

hi,
FORM F_GET_details .
REFRESH INT_RET.
*--THIS WILL FETCH THE details
SELECT aBill aplant Number b~BillingDate
INTO TABLE int_table
                FROM ( ztable_numplant AS a
                  INNER JOIN
                    ztable_numdate AS b
                      ON  abillnimber = bbillnumber ).
  IF SY-SUBRC NE 0.
*--MESSAGE IS 'NO data found'
  ELSE.
    CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
      EXPORTING
        RETFIELD        = 'screen field'
        VALUE_ORG       = 'S'
      TABLES
        VALUE_TAB       = INT_tab
        RETURN_TAB      = INT_RET
      EXCEPTIONS
        PARAMETER_ERROR = 1
        NO_VALUES_FOUND = 2
        OTHERS          = 3.
    IF SY-SUBRC <> 0.
      MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    ENDIF.
    READ TABLE INT_RET INDEX 1 INTO INT_RET.
    WF_data_needed = INT_RET-FIELDVAL.
  ENDIF.
ENDFORM. 
if hlped rwrd points
anver