LT04 BATCH INPUT TROUBLE

Question

Hy guys i have a little trouble with my batch input. in my table t_fabb i have many rows but just after the first batch, i have an error message:MESSAGE e000(zlo) WITH 'Errore conferma OT LT04.
If i exit from the report ang get in again , the same row that failed , succed but the next row fail etc...
i can't understand why....
LOOP AT t_fabb.   
SELECT *
      FROM ltbk
     WHERE tbnum >= t_fabb-tbnum
       AND lznum  = t_fabb-aufnr
       AND lgnum  = '050'
       AND statu <> 'E'.
      SELECT SINGLE *
        FROM ltbp
       WHERE lgnum  = '050'
         AND elikz <> 'X'
         AND matnr = t_fabb-matnr
         AND tbnum = ltbk-tbnum
         AND charg <> ''.
      IF sy-subrc = 0.
        EXIT.
      ENDIF.
    ENDSELECT.
    IF sy-subrc <> 0.
      MESSAGE e000(zlo) WITH 'Numero OT già confermata'.
      LEAVE SCREEN.SET SCREEN 0.
    ENDIF.
    CLEAR bdcdata.
    REFRESH bdcdata.
    PERFORM bdc_dynpro      USING 'SAPML03T' '0131'.
*  PERFORM bdc_field       USING 'BDC_CURSOR'
*                               'LTBK-TBNUM'.
    PERFORM bdc_field       USING 'BDC_OKCODE'
                                  '/00'.
    PERFORM bdc_field       USING 'LTAK-LGNUM'
                                  '050'.
    PERFORM bdc_field       USING 'LTBK-TBNUM'
                                  ltbp-tbnum.
    PERFORM bdc_field       USING '*LTBP-TBPOS'
                                ltbp-tbpos.
    PERFORM bdc_field       USING 'RL03T-ALAKT'
                                  'X'.
    PERFORM bdc_field       USING 'RL03T-DUNKL'
                                   'D'.
    CALL TRANSACTION 'LT04' USING bdcdata
*{   REPLACE        LGPK901791                                        1
*                     MODE 'N'  UPDATE 'S' MESSAGES INTO messtab.
                     MODE 'E'  UPDATE 'S' MESSAGES INTO messtab.
*}   REPLACE
    IF sy-subrc = 0.
      SELECT SINGLE *
        FROM ltbp
       WHERE lgnum = '050'
         AND tbnum = ltbp-tbnum
         AND tanum <> ' '.
      IF sy-subrc = 0.
        z311a-ztanum = ltbp-tanum.
      ENDIF.
      PERFORM modify_z331a.
    ELSE.
      MESSAGE e000(zlo) WITH 'Errore conferma OT LT04'.
      LEAVE SCREEN.SET SCREEN 0.
    ENDIF.
    READ TABLE messtab WITH KEY msgtyp = 'S'
                                msgid = 'LT'
                                msgnr = '100'.
  ENDLOOP.

Answer 1

Hi,
Just check in 'messtab' if there is some error messages.
Please note that when transfer orders are created in sequence a commit work must be placed between the calls so as to clear the global internal tables associated.
Instead of call transaction i suggest that you use the FM L_TO_CREATE_TR. Please go through teh documenttation of the FM.
Also i find that you are doing SELECT within LOOPs. Please try to avoid it. Although it is not related to your issue; but as best practices one should avoid it.
Regards,
Ankur Parab