Hi all, How can i write logic in user exit?

i have user exit exit_saplmgmu_001.How can i write in user exit? in which t-code.

Hi Murali,
I mean you are looking for the fields that has to be populated to the database table. So, go through this link you will have clear picture of MM01 Screen exit where you can populate the field in the database also.
I think this is the link that exactly suits your requirement.
Here all the details are given in detail with screen shots.
Please go through this.
http://www.****************/Tutorials/ExitsBADIs/MM/MM01.htm
Reward points if it helps.
Cheers,
Swamy Kunche

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Refer the below links,
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http://www.erpgenie.com/component/content/article/1097
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Hello Saroja
The solution provided by Rich should be used for testing purposes only in the the reverted sense:
IF ( syst-uname ne '<specific user>' ).
RETURN.
ENDIF.
" Execute user-exit for specific user
However, for serious programming you should use a a better strategy. In principle, user-exits are either ON or OFF and, if they are ON, they are ON for all user which is usually not intended.
The following example shows a (possible) strategy how to execute user-exits based on specific conditions.
The SAP extension CATS0001 contains the component EXIT_SAPLCATS_001 with the following interface:
FUNCTION EXIT_SAPLCATS_001.
*"*"Lokale Schnittstelle:
*" IMPORTING
*" VALUE(SAP_TCATS) LIKE TCATS STRUCTURE TCATS
*" VALUE(SAP_PERNR) LIKE CATSFIELDS-PERNR
*" VALUE(SAP_DATELEFT) LIKE CATSFIELDS-DATELEFT
*" VALUE(SAP_DATERIGHT) LIKE CATSFIELDS-DATERIGHT
*" VALUE(SAP_DATEFROM) LIKE CATSFIELDS-DATEFROM OPTIONAL
*" VALUE(SAP_DATETO) LIKE CATSFIELDS-DATETO OPTIONAL
*" TABLES
*" SAP_ICATSW STRUCTURE CATSW
*" SAP_ICATSW_FIX STRUCTURE CATSW OPTIONAL
INCLUDE ZXCATU01.
ENDFUNCTION.
The include ZXCATU01 contains only the following coding:
CALL FUNCTION 'Z_EXIT_SAPLCATS_001'
 EXPORTING
 sap_tcats = sap_tcats
 sap_pernr = sap_pernr
 sap_dateleft = sap_dateleft
 sap_dateright = sap_dateright
 SAP_DATEFROM = SAP_DATEFROM
 SAP_DATETO = SAP_DATETO
 tables
 sap_icatsw = sap_icatsw
 SAP_ICATSW_FIX = SAP_ICATSW_FIX.
This function module is just a copy of the exit function module in the customer namespace.
Let us assume that your condition at which the user-exit should be executed is that the employee (SAP_PERNR) belongs to a specific controlling area. Thus, we make another copy of the original exit function module and call this fm within the "general" customer-specific exit function module:
FUNCTION z_exit_saplcats_001.
*"*"Local Interface:
*" IMPORTING
*" VALUE(SAP_TCATS) LIKE TCATS STRUCTURE TCATS
*" VALUE(SAP_PERNR) LIKE CATSFIELDS-PERNR
*" VALUE(SAP_DATELEFT) LIKE CATSFIELDS-DATELEFT
*" VALUE(SAP_DATERIGHT) LIKE CATSFIELDS-DATERIGHT
*" VALUE(SAP_DATEFROM) LIKE CATSFIELDS-DATEFROM OPTIONAL
*" VALUE(SAP_DATETO) LIKE CATSFIELDS-DATETO OPTIONAL
*" TABLES
*" SAP_ICATSW STRUCTURE CATSW
*" SAP_ICATSW_FIX STRUCTURE CATSW OPTIONAL
" User-Exit specific for employees (SAP_PERNR)
" belonging to controlling area 1000
CALL FUNCTION 'Z_EXIT_SAPLCATS_001_1000'
 EXPORTING
 sap_tcats = sap_tcats
 sap_pernr = sap_pernr
 sap_dateleft = sap_dateleft
 sap_dateright = sap_dateright
 sap_datefrom = sap_datefrom
 sap_dateto = sap_dateto
 TABLES
 sap_icatsw = sap_icatsw
 sap_icatsw_fix = sap_icatsw_fix.
" User-Exit specific for employees (SAP_PERNR)
" belonging to controlling area 2000
CALL FUNCTION 'Z_EXIT_SAPLCATS_001_2000'
 EXPORTING
 sap_tcats = sap_tcats
 sap_pernr = sap_pernr
 sap_dateleft = sap_dateleft
 sap_dateright = sap_dateright
 sap_datefrom = sap_datefrom
 sap_dateto = sap_dateto
 TABLES
 sap_icatsw = sap_icatsw
 sap_icatsw_fix = sap_icatsw_fix.
ENDFUNCTION.
Finally, within the specific exit function module we define the condition when the exit should be executed:
FUNCTION z_exit_saplcats_001_1000.
*"*"Local Interface:
*" IMPORTING
*" VALUE(SAP_TCATS) LIKE TCATS STRUCTURE TCATS
*" VALUE(SAP_PERNR) LIKE CATSFIELDS-PERNR
*" VALUE(SAP_DATELEFT) LIKE CATSFIELDS-DATELEFT
*" VALUE(SAP_DATERIGHT) LIKE CATSFIELDS-DATERIGHT
*" VALUE(SAP_DATEFROM) LIKE CATSFIELDS-DATEFROM OPTIONAL
*" VALUE(SAP_DATETO) LIKE CATSFIELDS-DATETO OPTIONAL
*" TABLES
*" SAP_ICATSW STRUCTURE CATSW
*" SAP_ICATSW_FIX STRUCTURE CATSW OPTIONAL
IF ( <user BELONGS to CONTROLLING area 1000> ).
 " execute user-exit
ELSE.
 RETURN.
ENDIF.
ENDFUNCTION.
The alternative would be to place the entire coding including the conditions in the include ZXCATU01. However, in this case you can test the user exit only in the context of the transaction in which the user-exit is passed.
Using the strategy I have devised you are able to test the user-exit in general and the specific user-exits independent of the transaction. For example, if you are already working on 6.40 or higher then you could use ABAP Unit Testing for this purpose.
The same logic can be applied for BAdI where we can have only a single active implementation.
Finally, I hope to convince that it makes sense to spend some time into a reasonable strategy for implementing user-exits.
Regards
Uwe

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Hi,
SELECT objnr objid aufnr
 from afih
 into table t_afih.
SELECT objnr
 from JEST
 into table t_JEST
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 OR stat = 'A0046'
 AND inact 'X'.
SELECT objnr
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SELECT arbpl werks objid objty
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dont use NE in the select statements, it may effect performance also. Instead use if statements inside
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loop at t_caufv.
read table it_chrd............
if t_caufv-objnr ne it_chrd-objnr.
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 (proceed further).
 endif.
endif.
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hope this helps.
Reward if useful.
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Hi
How can we write the below code using "for all entries" and need to avoid joins...
Please help
SELECT aaufnr aobjnr aauart atxjcd a~pspel
agstrp awerks carbpl cwerks
INTO TABLE t_caufv
FROM caufv AS a
INNER JOIN afih AS b
ON aaufnr = baufnr
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ON bgewrk = cobjid
AND c~objty = 'D'
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Thanks
Ammi.

Hi,
SELECT objnr objid aufnr
        from afih
        into table t_afih.
SELECT objnr
        from JEST
        into table t_JEST
        where stat = 'A0045'
           OR stat = 'A0046'
           AND inact 'X'.
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        from COBRB
        into table t_cobrb.
SELECT arbpl werks objid objty
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      WHERE objty eq 'D'
      AND gewrk = it_afih-objid.
SELECT aufnr objnr auart txjcd pspel gstrp werks aufnr
        FROM caufv
        INTO table t_caufv
        FOR ALL ENTRIES IN it_afih
        WHERE aufnr = it_afih-aufnr
          And pspel = ' '
          AND txjcd = ' '
         ANd objnr ne it_crhd-objnr
          AND auart in s_wtype
          AND werks in s_plant.
         AND objnr ne it_jest-objnr.
dont use NE in the select statements, it may effect performance also. Instead use if statements inside
loops.
loop at t_caufv.
read table it_chrd............
if t_caufv-objnr ne it_chrd-objnr.
read table it_jest..........
   if   if t_caufv-objnr ne it_jest-objnr.
    (proceed further).
   endif.
endif.
endloop.
hope this helps.
Reward if useful.
Regards,
Anu

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Rizwan Ali Wahla wrote:
I want to know how can I write a cursor which told me no record exists before opening and running the loop.
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2          empRow EMP%RowType;
3 begin
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11 end;
12 /
Function created.
SQL>
SQL> declare
2
3          procedure ProcessEmp( empID number ) is
4                  empRow EMP%RowType;
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6                  empRow := GetEmployee( empID );
7
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13                                  ' and employed as '||empRow.job
14                          );
15                  end if;
16          end;
17
18 begin
19          ProcessEmp( 7900 );
20          ProcessEmp( 7901 );
21 end;
22 /
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Employee 7901 does not exist.
PL/SQL procedure successfully completed.
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Hi ..
That is ok..
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