SAP ABAP Enhancement - SAP Tutorial

How to disable standard field in ME51N

You can disable or grey out standard field in ME51N on certain condition. the solution you need to create Enhancement Implementation in function module MEREQBADI_FS_ITEM and create enhancement on last line and put this ABAP Code into this enhancement.

DATA: WA_ITEM TYPE MEREQ_ITEM,
      WA_header TYPE MEREQ_header.

  FIELD-SYMBOLS: <fs_sakto> like line of CH_FIELDSELECTION.

  CLEAR: WA_ITEM.

  CALL METHOD IM_ITEM->GET_DATA  " Get PR items
    RECEIVING
        RE_DATA = WA_ITEM.
  CALL METHOD IM_header->GET_DATA  " Get PR items
    RECEIVING
        RE_DATA = WA_header.

  IF wa_item-idnlf ne ''.

    READ TABLE CH_FIELDSELECTION ASSIGNING <fs_sakto> WITH TABLE KEY METAFIELD = 73.
    IF SY-SUBRC eq 0.
      <fs_sakto>-fieldstatus = '*'.  "Displayed Only
    ENDIF.

  ELSE.
     READ TABLE CH_FIELDSELECTION ASSIGNING <fs_sakto> WITH TABLE KEY METAFIELD = 73.
    IF SY-SUBRC eq 0.
      <fs_sakto>-fieldstatus = '+'.  "Displayed Only
    ENDIF.
  ENDIF.

  IF wa_item-afnam ne ''.

    READ TABLE CH_FIELDSELECTION ASSIGNING <fs_sakto> WITH TABLE KEY METAFIELD = 17.
    IF SY-SUBRC eq 0.
      <fs_sakto>-fieldstatus = '*'.  "Displayed Only
    ENDIF.

  ELSE.
     READ TABLE CH_FIELDSELECTION ASSIGNING <fs_sakto> WITH TABLE KEY METAFIELD = 17.
    IF SY-SUBRC eq 0.
      <fs_sakto>-fieldstatus = '+'.  "Displayed Only
    ENDIF.
  ENDIF.

DATA: WA_ITEM TYPE MEREQ_ITEM,

WA_header TYPE MEREQ_header.

FIELD-SYMBOLS: <fs_sakto> like line of CH_FIELDSELECTION.

CLEAR: WA_ITEM.

CALL METHOD IM_ITEM->GET_DATA " Get PR items

RECEIVING

RE_DATA = WA_ITEM.

CALL METHOD IM_header->GET_DATA " Get PR items

RECEIVING

RE_DATA = WA_header.

IF wa_item-idnlf ne ''.

READ TABLE CH_FIELDSELECTION ASSIGNING <fs_sakto> WITH TABLE KEY METAFIELD = 73.

IF SY-SUBRC eq 0.

<fs_sakto>-fieldstatus = '*'. "Displayed Only

ENDIF.

ELSE.

READ TABLE CH_FIELDSELECTION ASSIGNING <fs_sakto> WITH TABLE KEY METAFIELD = 73.

IF SY-SUBRC eq 0.

<fs_sakto>-fieldstatus = '+'. "Displayed Only

ENDIF.

IF wa_item-afnam ne ''.

READ TABLE CH_FIELDSELECTION ASSIGNING <fs_sakto> WITH TABLE KEY METAFIELD = 17.

IF SY-SUBRC eq 0.

<fs_sakto>-fieldstatus = '*'. "Displayed Only

ENDIF.

ELSE.

READ TABLE CH_FIELDSELECTION ASSIGNING <fs_sakto> WITH TABLE KEY METAFIELD = 17.

IF SY-SUBRC eq 0.

<fs_sakto>-fieldstatus = '+'. "Displayed Only

ENDIF.

Note : That’s code will grey out automatically after user input data into field AFNAM ( Requisitioner […]

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