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user exit vs customer exit

Hi experts ,

i am confusing user exit and customer exit plz give good diffrence and where we use these exits

thanks and advance

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7 Answers

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    Former Member
    Jun 19, 2007 at 03:41 AM

    Hi,

    User exit - A user exit is a three character code that instructs the system to access a program during system processing.

    SXX: S is for standard exits that are delivered by SAP. XX represents the 2-digit exit number.

    UXX: U is for user exits that are defined by the user. XX represents the 2-digit exit number

    Customer exit - The R/3 enhancement concept allows you to add your own functionality to SAP’s standard business applications without having to modify the original applications. SAP creates customer exits for specific programs, screens, and menus within standard R/3 applications. These exits do not contain any functionality. Instead, the customer exits act as hooks. You can hang your own add-on functionality onto these hooks.

    The program for transaction VA01 Create salesorder is SAPMV45A

    If you search for CALL CUSTOMER-FUNCTION i program

    SAPMV45A you will find ( Among other user exits):

    CALL CUSTOMER-FUNCTION '003'

    exporting

    xvbak = vbak

    xvbuk = vbuk

    xkomk = tkomk

    importing

    lvf_subrc = lvf_subrc

    tables

    xvbfa = xvbfa

    xvbap = xvbap

    xvbup = xvbup.

    The exit calls function module EXIT_SAPMV45A_003

    Development

    Creating a Project to include the enhancement

    1. Go to transaction CMOD and create a project.

    2. Enter a description for the project. Then, click on the pushbutton ‘Enhancement Assignments’ in the Application Toolbar.

    3. Enter the name of the enhancement and Save.

    4. Go to ‘Components’.

    Creating Custom Include for ANLU

    The screen shown below will appear, showing all the enhancement components under the assignment AIST0002. Double-click on the name of the Include Structure to create it.

    Create the include structure with three new fields, as required. Then, save and activate it.

    Develop the subscreen and the program

    Go to transaction SE80. For the function group XAIS, create a new subscreen 9000.

    Create it as subscreen.

    Then, go to the Layout of the screen and create three new fields from Database table ANLU.

    Drag the fields in the screen body and place them.

    Then, save and activate the screen and come back to screen flow editor.

    Create the PAI module to add validation for field “Location 2”, as required .

    Activate the whole function group and come out.

    Write code in the Function Exits to synchronize the programs

    Now, code has to be written in the function modules EXIT_SAPLAIST_002 and EXIT_SAPLAIST_003 so that data flows to and fro between the main SAP program and custom subscreen program. For that, go back to transaction CMOD and change the function exits.

    Write code in the function module EXIT_SAPLAIST_002 called once at the beginning of the transaction:

    Write code in EXIT_SAPLAIST_003 to pass the data from the subscreen to SAP main program.

    Then, activate everything – the whole project and come out.

    Complete the configuration to link the subscreen

    The development portion is complete. Now, linking of the subscreen has to be done with the subscreen area of the main program. In most of the cases, this linking can be done in the enhancement itself. But, here, requirement is a bit different. It is done by configuration using SPRO.

    Assets are created under Asset class. And for each asset class, there is a layout assigned to it. For a layout, there are multiple tab pages assigned to it. And, for each tab page, there are multiple screen groups/field groups assigned.

    Here, the requirement is to create these three custom fields in the tab page ‘General’ of asset master screen ( AS01/AS02/AS03/AS91).

    Determine the Layout

    To achieve this, first of all, we need to find out which layout is assigned to asset class 1000.For that, go to transaction AOLK( information has to be obtained from functional consultant).Select the Asset Class ‘1000’ and click on folder ‘General Assignment of Layout’.

    Here, for Asset class 1000, for all the user groups, tab layout SAP is assigned. Since layout ‘SAP’ cannot be changed, it has to be copied and manipulated to include our screen group. Later, the new layout has to be assigned over here.

    Create new tab layout

    Go to transaction AOLA. Copy the tab layout ‘SAP’ to create another layout, say, YSUB.

    System will copy all the settings and will inform you about that.

    Select your newly created layout and double-click on the folder ‘Tab page titles’.

    You want to put your custom fields in the tab page “General”. So, select this tab page entry and double-click on the folder "Position of Groups".

    Here, all the field groups currently residing in the tab-page “General” are shown. Add an entry for your newly created fields.

    Select the group box from the list. An entry will come with “U” padded with the custom subscreen prepared by you.

    Then, save and come out.

    Assign the new Layout to Asset Class

    Now, go to tcode AOLK and assign tab layout YSUB for asset class 1000.

    Save and come out.

    Test the Exit

    Everything is over. Now, go to transaction code AS01/02/03 or AS91 to deal with an asset of asset class 1000. You will see your new fields added to the screen. Add values to them…save. Then, enter into the tcodes again to see whether the values entered by you are being displayed or not.

    Please check these links for more information.

    http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975cc43b111d1896f0000e8322d00/content.htm

    http://www.sapdevelopment.co.uk/enhance/enhancehome.htm

    http://www.sap-img.com/abap/what-is-user-exits.htm

    customer-exit-and-user-exit

    user-exit-vs-customer-exit

    Regards,

    Priyanka.

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    Former Member
    Jun 19, 2007 at 03:27 AM

    Hi prasanna,

    they both are the same thing. Only in the program they are written as

    CALL CUSTOMER FUNCTION, thats why many times they referred as customer exit.

    Reward points if useful.

    Regards,

    Atish

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    Former Member
    Aug 05, 2011 at 11:05 AM

    Hi

    User exit :technically called as MODIFICATIONS.

    user exits code written in include between form and endform.Once code changed we can not regain original character of a standard program.

    where as customer exits technically called as ENHANCEMENTS.

    Here we can regain our standard program.

    Thannks&Regards

    M.Suresh

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    Former Member
    Jun 19, 2007 at 03:35 AM

    hi,

    USER EXITS->

    1. Introduction:

    User exits (Function module exits) are exits developed by SAP.

    The exit is implementerd as a call to a functionmodule.

    The code for the function module is writeen by the developer.

    You are not writing the code directly in the function module,

    but in the include that is implemented in the function module.

    The naming standard of function modules for functionmodule exits is:

    EXIT_<program name><3 digit suffix>

    The call to a functionmodule exit is implemented as:

    CALL CUSTOMER.-FUNCTION <3 digit suffix>

    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm

    CUSTOMER EXITS-> t-code CMOD.

    As of Release 4.6A SAP provides a new enhancement technique, the Business Add-Ins.

    Among others, this enhancement technique has the advantage of

    being based on a multi-level system landscape (SAP, country versions, IS solutions, partner,

    customer, and so on)

    instead of a two-level landscape (SAP, customer) as with the customer exits.

    You can create definitions and implementations of business add-ins at any level of the system landscape.

    To unify enhancements of the SAP Standard you can migrate customer exits to business add-ins.

    http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975cc43b111d1896f0000e8322d00/content.htm

    *****************

    In order to find out the user exits for any tcode,

    1. get the developement class of the tcode from SE93.

    2. Now goto transaction SMOD and press F4,

    3. give in the Deve class in the dev class and Press ENTER

    this will show u the exits for any tcode.

    or execute this report

    http://www.erpgenie.com/sap/abap/code/abap26.htm

    which gives the list of exits for a tcode

    http://help.sap.com/saphelp_nw04/helpdata/en/bf/ec079f5db911d295ae0000e82de14a/frameset.htm

    For information on Exits, check these links

    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm

    http://www.sapgenie.com/abap/code/abap26.htm

    http://www.sap-img.com/abap/what-is-user-exits.htm

    http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction

    http://www.easymarketplace.de/userexit.php

    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm

    http://www.sappoint.com/abap/userexit.pdfUser-Exit

    ~~Guduri

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    Former Member
    Jun 19, 2007 at 04:25 AM

    Hai,

    If u want impliment the user exit then u should write the code in between the module and endmodule.

    but in case of all enhancements we can write the code in the include only.

    user exits doesnot support the upgradation and enhancement should support the upgradation.

    we can find the correct user exit by putting the break-point. then run the corresponding t.code then it will go through the debugg mode. if it go through the bedug mode then only that exit is correct.(for ur requirement).

    Thanks and Rgds,

    P.Naganjana Reddy

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    Former Member
    Jun 19, 2007 at 04:34 AM

    hi,

    User exit - A user exit is a three character code that instructs the system to access a program during system processing.

    SXX: S is for standard exits that are delivered by SAP. XX represents the 2-digit exit number.

    UXX: U is for user exits that are defined by the user. XX represents the 2-digit exit number

    Customer exit - The R/3 enhancement concept allows you to add your own functionality to SAP’s standard business applications without having to modify the original applications. SAP creates customer exits for specific programs, screens, and menus within standard R/3 applications. These exits do not contain any functionality. Instead, the customer exits act as hooks. You can hang your own add-on functionality onto these hooks.

    The program for transaction VA01 Create salesorder is SAPMV45A

    If you search for CALL CUSTOMER-FUNCTION i program

    SAPMV45A you will find ( Among other user exits):

    CALL CUSTOMER-FUNCTION '003'

    exporting

    xvbak = vbak

    xvbuk = vbuk

    xkomk = tkomk

    importing

    lvf_subrc = lvf_subrc

    tables

    xvbfa = xvbfa

    xvbap = xvbap

    xvbup = xvbup.

    The exit calls function module EXIT_SAPMV45A_003

    Development

    Creating a Project to include the enhancement

    1. Go to transaction CMOD and create a project.

    2. Enter a description for the project. Then, click on the pushbutton ‘Enhancement Assignments’ in the Application Toolbar.

    3. Enter the name of the enhancement and Save.

    4. Go to ‘Components’.

    Creating Custom Include for ANLU

    The screen shown below will appear, showing all the enhancement components under the assignment AIST0002. Double-click on the name of the Include Structure to create it.

    Create the include structure with three new fields, as required. Then, save and activate it.

    Develop the subscreen and the program

    Go to transaction SE80. For the function group XAIS, create a new subscreen 9000.

    Create it as subscreen.

    Then, go to the Layout of the screen and create three new fields from Database table ANLU.

    Drag the fields in the screen body and place them.

    Then, save and activate the screen and come back to screen flow editor.

    Create the PAI module to add validation for field “Location 2”, as required .

    Activate the whole function group and come out.

    Write code in the Function Exits to synchronize the programs

    Now, code has to be written in the function modules EXIT_SAPLAIST_002 and EXIT_SAPLAIST_003 so that data flows to and fro between the main SAP program and custom subscreen program. For that, go back to transaction CMOD and change the function exits.

    Write code in the function module EXIT_SAPLAIST_002 called once at the beginning of the transaction:

    Write code in EXIT_SAPLAIST_003 to pass the data from the subscreen to SAP main program.

    Then, activate everything – the whole project and come out.

    Complete the configuration to link the subscreen

    The development portion is complete. Now, linking of the subscreen has to be done with the subscreen area of the main program. In most of the cases, this linking can be done in the enhancement itself. But, here, requirement is a bit different. It is done by configuration using SPRO.

    Assets are created under Asset class. And for each asset class, there is a layout assigned to it. For a layout, there are multiple tab pages assigned to it. And, for each tab page, there are multiple screen groups/field groups assigned.

    Here, the requirement is to create these three custom fields in the tab page ‘General’ of asset master screen ( AS01/AS02/AS03/AS91).

    Determine the Layout

    To achieve this, first of all, we need to find out which layout is assigned to asset class 1000.For that, go to transaction AOLK( information has to be obtained from functional consultant).Select the Asset Class ‘1000’ and click on folder ‘General Assignment of Layout’.

    Here, for Asset class 1000, for all the user groups, tab layout SAP is assigned. Since layout ‘SAP’ cannot be changed, it has to be copied and manipulated to include our screen group. Later, the new layout has to be assigned over here.

    Create new tab layout

    Go to transaction AOLA. Copy the tab layout ‘SAP’ to create another layout, say, YSUB.

    System will copy all the settings and will inform you about that.

    Select your newly created layout and double-click on the folder ‘Tab page titles’.

    You want to put your custom fields in the tab page “General”. So, select this tab page entry and double-click on the folder "Position of Groups".

    Here, all the field groups currently residing in the tab-page “General” are shown. Add an entry for your newly created fields.

    Select the group box from the list. An entry will come with “U” padded with the custom subscreen prepared by you.

    Then, save and come out.

    Assign the new Layout to Asset Class

    Now, go to tcode AOLK and assign tab layout YSUB for asset class 1000.

    Save and come out.

    Test the Exit

    Everything is over. Now, go to transaction code AS01/02/03 or AS91 to deal with an asset of asset class 1000. You will see your new fields added to the screen. Add values to them…save. Then, enter into the tcodes again to see whether the values entered by you are being displayed or not.

    regards

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    Former Member
    Aug 06, 2011 at 05:07 AM

    Hi Prasanna,

    In simple way till 4.7 only we have user exits. That time u have to check inside the program and you have to write code. After 4.7 we called as customer exits and here this code we are writing in a function module.

    Regards,

    Madhu.

    Moderator message : See the date of Original Post before replying.

    Edited by: Vinod Kumar on Aug 6, 2011 12:19 PM

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