Urgent help in BADI

Question

Hi Abappers,
    Kindly help me out as i am in trouble. I have got a requirement to add customized fields onto O4_TIGER screen using BADI. I have got the name of the BADI definition ie., OII_DIP_ADD_COLUMNS . This screen is related to MM -> Inventory mangement -> Is-OIL.
Can anyone pl help me out of how to add fields . Coz i have absolutely nil knowledge in BADIs and Userexits. I would be very much pleased if some one suggest me a step by step process.
Regards.

Answer 1

<b>first u define BADI in " SE18", and implement in "SE19".
for predefined GLOBAL CLASS : CL_EXITHANDLER which can enable BADI service.
method-->GET_INSTANCE (which can create instance of a class)
gowith SE18 --> NAME..... Z***** --> CREATE,
click check box MULTIPLE USE.
select INTERFACE tab
INTERFACE ..... ZIF_EX_****   <-----click on  this -
> enter.
save details.
METHODS                  LEVEL           DESCRIPTION
SELECT-DATA          INSTANCE            SELECTING DATA
select PARAMETERS
PARAMETER                      TYPE                 TYPING
CUST_LOW                     IMPORTING            TYPE           KNA1-KUNNR      
CUST_HIGH                    IMPORTING             TYPE          KNA1-KUNNR
SAVE DETAILS.
implementing BADI -
> SE19
implementation name  ...... Z**********-----> CREATE
DESCRIPTION--...DEMO FOR BADI
select--> INTERFACE
for method> SELECT_DATA   <--- click on this ---> enter
save details.
METHOD
DATA : ITAB TYPE TABLE OF KNA1,
            WA TYPE KNA1.
SELECT KUNNR LAND1 NAME1 ORT01 FROM KNA1 INTO TABLE ITAB WHERE KUNNR BETWEEN CUST_LOW AND CUST_HIGH.
LOOP AT ITAB INTO WA.
WRITE:/ WA-KUNNR,WA-LAND1,WA-NAME1,WA-ORT01.
ENDLOOP.
ENDMETHOD.
F3 ,       SAVE and ACTIVATE.
LETUS CREATE EXECUTABLE PROGRAM (SE38).
PROVIDE TABLE WA.
REPORT Z*******
TABLES: KNA1.
SELECT-OPTIONS: S_KUNNR FOR KNA1-KUNNR.
declaration.
CLASS CL_EXITHANDLER DEFINITION LOAD.
interface reference
DATA: OBJ_EXIT TYPE REF TO ZIF_EX_*****.
START-OF-SELECTION.
gowith PATTERN ---> AABAP object pattern --> ENTER.
CALL METHOD
CLASS----   CL_EXITHANDLER
METHOD---  GET_INSTANCE
ENTER.
CALL METHOD.............
CHANGING
INSTANCE  =  OBJ_EXIT.
gowith PATTERN> AABAP OBJECT--> ENTER
CALL METHOD
OBJ---> OBJ_EXIT,
CLASS---> ZIF_EX_*******,
METHOD----> SELECT_DATA.
CALL METHOD.................
EXPORTING
CUST_LOW  = S_KUNNR-LOW
CUST_HIGH  = S_KUNNR-HIGH. 
SAVE and  ACTIVATE.
EXECUTE.</b>