Problems with loop

[Former Member]

Hello! sorry guys but I have the next problem in my code to make a loop. I not understand why? This is my code in my BADI PROCESS_PS_CUST
LOOP AT t_posic INTO wa_posic.

    wa_posic-mandt = SY-MANDT.

    wa_posic-ebeln = im_ebeln.

    MOVE-CORRESPONDING t_posic to ZME21N005.

    MODIFY ZME21N005.

  ENDLOOP.

Error:

Field "ZME21NXXX is unknown. It is neither in one of the specified

[Former Member]

Your code is incorrect.

MOVE-CORRESPONDING t_posic to ZME21N005. -> you should move this one to work area and not direct to custom table.

Do something like this:

DATA: wa_zmew21n005 TYPE zme21n005.

LOOP AT t_posic INTO wa_posic.

    wa_posic-mandt = SY-MANDT.

    wa_posic-ebeln = im_ebeln.

    MOVE-CORRESPONDING wa_posic TO wa_zmew21n005.

    MODIFY ZME21N005 FROM wa_zmew21n005.

  ENDLOOP.

Performance wise also, it is recommended to modify custom table outside loop.

DATA: wa_zmew21n005 TYPE zme21n005,

            i_zmew21n005 TYPE STANDARD TABLE OF zme21n005.

LOOP AT t_posic INTO wa_posic.

    wa_posic-mandt = SY-MANDT.

    wa_posic-ebeln = im_ebeln.

    MOVE-CORRESPONDING wa_posic TO wa_zmew21n005.

    APPEND wa_zmew21n005 TO i_zmew21n005.

  ENDLOOP.

MODIFY ZME21N005 FROM TABLE i_zmew21n005.

[Former Member]

Tank you bro!