Err. E:"TRANSPORTING NO FIELDS" will not fill the output area.

Question

Dear all,
Below are my codes and i keep getting this error
E:"TRANSPORTING NO FIELDS" will not fill the output area. The addition does not make sense here.
Any idea how to fix this?
The first bit...
TABLES: /BI0/MWBS_ELEMT.
  DATA:   I_MWBS_ELEMT LIKE /BI0/MWBS_ELEMT OCCURS 0 WITH HEADER LINE.
  DATA:   W_MWBS_ELEMT LIKE LINE OF I_MWBS_ELEMT.
Then second bit...
  READ TABLE I_MWBS_ELEMT WITH KEY WBS_ELEMT = SOURCE_FIELDS-POSID TRANSPORTING NO FIELDS INTO W_MWBS_ELEMT.
  IF SY-SUBRC IS INITIAL.
    RESULT = W_MWBS_ELEMT-RESP_CCTR.
    RETURNCODE = 0.
  ELSE.
    SELECT SINGLE * FROM /BI0/MWBS_ELEMT INTO W_MWBS_ELEMT
                    WHERE WBS_ELEMT = SOURCE_FIELDS-POSID
                    AND OBJVERS = 'A'.
    IF SY-SUBRC IS INITIAL.
      APPEND W_MWBS_ELEMT TO W_MWBS_ELEMT SORTED BY RESP_CCTR.
     RESULT = W_MWBS_ELEMT-RESP_CCTR.
    ELSE.
      CLEAR RESULT.
    ENDIF.
  ENDIF.

Answer 1

Hi
The error is here
READ TABLE I_MWBS_ELEMT WITH KEY WBS_ELEMT = SOURCE_FIELDS-POSID TRANSPORTING NO FIELDS INTO W_MWBS_ELEMT.
The addtion TRANSPORTING NO FIELDS is in conflit with addition INTO:
TRANSPORTING NO FIELDS means not to fill the work are
INTO mean fill a work area
So or u need to fill a work area or u don't need to fill a work area, but (from the code you've pasted) it seems u need to fill the work area W_MWBS_ELEMT, so your code should be:
READ TABLE I_MWBS_ELEMT INTO W_MWBS_ELEMT WITH KEY WBS_ELEMT = SOURCE_FIELDS-POSID.
  IF SY-SUBRC IS INITIAL.
    RESULT = W_MWBS_ELEMT-RESP_CCTR.
    RETURNCODE = 0.
  ELSE.
    SELECT SINGLE * FROM /BI0/MWBS_ELEMT INTO W_MWBS_ELEMT
                    WHERE WBS_ELEMT = SOURCE_FIELDS-POSID
                    AND OBJVERS = 'A'.
    IF SY-SUBRC IS INITIAL.
      APPEND W_MWBS_ELEMT TO W_MWBS_ELEMT SORTED BY RESP_CCTR.
     RESULT = W_MWBS_ELEMT-RESP_CCTR.
    ELSE.
      CLEAR RESULT.
    ENDIF.
  ENDIF.
Max