Wednesday, July 25, 2012

Grey out fields on ME21N/ME22N/ME23N

How to grey out fields on ME21N/ME22N/ME23N

For certain Purchase orders, based on some condition, we need to grey out the fields NETPR & KBETR.

In order to do this, we need to find the right BADI or the right user exit to code our functionality. For this debug tool is a must to know where and how these fields are populated on the purchase order screen.

This functionality can be achieved by following the below steps.

For the PO creation/change screen below is the solution to gray out the required fields (NETPR & KBETR)

1. for NETPR:

The field catalog that fills NETPR is TC_1211 Actually in standard program SAPLMEGUI, there is a call to the FM MEGUI_BUILD_PO_ITEMOV_PLUGIN.. Inside that, in line 44, TC_1211 gets populated. This contains all field catalog values. So in BADI, code to disable field NETPR by reading values using field symbols.

In SE19:

Create Implementation — > Classic BADI –> ME_ACTV_CANCEL_PO –> Implementation name ZCL_IM_TEST

In method CHECK_ACTIVITY code the following:

Method IF_EX_ME_ACTV_CANCEL_PO~CHECK_ACTIVITY.
FIELD-SYMBOLS :<fs>        TYPE ANY TABLE,
<ls>        TYPE ANY,
<lr_screen> TYPE screen.

ASSIGN (‘(SAPLMEGUI)TC_1211-COLS’) TO <fs>.
IF sy-subrc IS INITIAL.
LOOP AT <fs> ASSIGNING <ls>.
ASSIGN COMPONENT ’SCREEN’ OF STRUCTURE <ls> TO <lr_screen>.
IF <lr_screen>-name = ’MEPO1211-NETPR’.
<lr_screen>-input = 0.
ENDIF.
ENDLOOP.
ENDIF.

endmethod.

Activate the implementation. NETPR will be disabled in the header when u try to create or change purchase order.

2. for KBETR

In Screen 6201 of program SAPLV69A -> LV69AO03à Module FELDAUSWAHL, there is a User Exit: PERFORM userexit_field_modification.

Inside this EXIT, change the contents of TCTRL_KONDITIONEN-COLS [6]-SCREEN-INPUT to 0. KBETR will get grayed out.

2 comments:

  1. Hi, I was try it but "1. for NETPR: " dose not work, could you told me how you completed it ? very thank.

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