Mapping of tables

Question

Dear Experts,
I am doing mapping between lips, vbap, vbak and vbkd tables.
here in lips table 2 records coming in debugging.But in vbap,vbak and vbkd there are no records am getting.My code:
SELECT  vgbel
            vbeln
            posnr FROM lips INTO TABLE it_lips
            FOR ALL ENTRIES IN it_vbrp
            WHERE vbeln = it_vbrp-vgbel.
    IF sy-subrc EQ 0.
      READ TABLE it_lips INTO wa_lips  INDEX 1 .
      DELETE ADJACENT DUPLICATES FROM it_lips COMPARING vgbel vbeln.
      LOOP AT it_lips INTO wa_lips.
      ENDLOOP.
      IF sy-subrc EQ 0.
  SELECT single  vbeln posnr FROM vbap INTO wa_vbap
                           FOR ALL ENTRIES IN it_lips
                           WHERE vbeln = it_lips-vbeln
                           AND   posnr = it_lips-posnr.
                             WHERE posnr = wa_lips-vgpos
                              and  vbeln = wa_lips-vgbel.
     IF sy-subrc EQ 0.
    SORT it_vbap BY posnr.
    DELETE ADJACENT DUPLICATES FROM it_vbrp COMPARING posnr.
    IF sy-subrc EQ 0.
    LOOP AT it_vbap INTO wa_vbap.
    ENDLOOP.
  ENDIF.
  endif.
  SELECT SINGLE vbeln
                netwr
                vkorg
                knumv FROM vbak
                INTO wa_vbak
                WHERE vbeln = wa_vbap-vbeln.
  IF sy-subrc EQ 0.
    MOVE :wa_vbak-netwr  TO wa_header-total_inv.
    LOOP AT  it_vbak INTO wa_vbak.
    ENDLOOP.
  ENDIF.
  SELECT SINGLE vbeln
                bstkd
                bstdk
                posnr FROM vbkd INTO wa_vbkd WHERE posnr = wa_vbap-posnr
                                             AND   vbeln = wa_vbap-vbeln.
Plz help me.
Regards
chitty.

Answer 1

Change your VBAP select as below:
SELECT single vbeln posnr FROM vbap INTO wa_vbap
FOR ALL ENTRIES IN it_lips
WHERE vbeln = it_lips-vgbel
AND posnr = it_lips-vgpos.