11-06-2007 6:10 AM
hi all,
How to know the different enhancements for SD module in SAP?
also
how to differentiate between
userexits
menu exits
screen exits
regards
sriram
11-06-2007 6:15 AM
<b>User exits</b>
<b>Introduction</b>
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 ❤️ digit suffix>
Example:
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
<b>How to find user exits</b>
Display the program where you are searching for and exit and search for CALL CUSTOMER-EXIT
If you know the Exit name, go to transaction CMOD. Choose menu Utillities->SAP Enhancements.
Enter the exit name and press enter.
You will now come to a screen that shows the function module exits for the exit.
<b>Using Project management of SAP Enhancements</b>
We want to create a project to enahance trasnaction VA01
Go to transaction CMOD
Create a project called ZVA01
Choose the Enhancement assign radio button and press the Change button
In the first column enter V45A0002 Predefine sold-to party in sales document . Note that an
enhancement can only be used i 1 project. If the enhancement is allready in use, and error message
will be displayed
Press Save
Press Components. You can now see that enhancement uses user exit EXIT_SAPMV45A_002.
Double click on the exit.
Now the function module is displayed. Double click on include ZXVVAU04 in the function module
Insert the following code into the include: E_KUNNR = '2155'.
Activate the include program. Go back to CMOD and activate the project.
Goto transaction VA01 and create a salesorder. Note that Sold-to-party now automatically is "2155"
Method to find the User Exits
SE81->SD->Select subtree->Information System->Envir->Exit Techniques->Customers exits->enhancements->Execute(F8)
<b> USEREXIT_DELETE_DOCUMENT
USEREXIT_FIELD_MODIFICATION
USEREXIT_MOVE_FIELD_TO_VBAP
USEREXIT_MOVE_FIELD_TO_VBAK
US USEREXIT_NUMBER_RANGE
USEREXIT_SAVE_DOCUMENT
USEREXIT_SAVE_DOCUMENT_PREPARE
USEREXIT_CHECK_XVBAP_FOR_DELET
USEREXIT_CHECK_VBAK
USEREXIT_FILL_VBAP_FROM_HVBAP</b>
<b>Notes</b>
What is User Exits and Customer Exits?
Difference between user exits & customer exits:
<b>User exit</b> - 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
<b>Customer exit</b> - The R/3 enhancement concept allows you to add your own functionality to SAPs 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 following document is about exits in SAP
The R/3 enhancement concept allows you to add your own functionality to SAPs standard business applications without having to modify the original applications.
SAP creates user 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.
<b>Types of Exits</b>
There are several different types of user exits. Each of these exits acts as hooks where you can attach or "hang" your own add-ons.
<b>Menu Exits</b>
Menu exits add items to the pulldown menus in standard SAP applications. You can use these menu items to call up your own screens or to trigger entire add-on applications.
SAP creates menu exits by defining special menu items in the Menu Painter. These special entries have function codes that begin with "+" (a plus sign). You specify the menu items text when activating the item in an add-on project.
<b>Screen Exits</b>
Screen exits add fields to screens in R/3 applications. SAP creates screen exits by placing special subscreen areas on a standard R/3 screen and calling a customer subscreen from the standard screens flow logic.
<b>Function Module Exits</b>
Function module exits add functions to R/3 applications. Function module exits play a role in both menu and screen exits.
When you add a new menu item to a standard pull down menu, you use a function module exit to define the actions that should take place once your menu is activated.
Function module exits also control the data flow between standard programs and screen exit fields. SAP application developers create function module exits by writing calls to customer functions into the source code of standard R/3 programs.
These calls have the following syntax:
CALL CUSTOMER-FUNCTION 001.
<b>Field Exits</b>
Field exits allow you to create your own programming logic for any data element in the Dictionary. You can use this logic to carry out checks, conversions, or business-related processing for any screen field. Example: The data element BBBNR identifies a companys international location number. You might want to set up your R/3 System so that all international location numbers are larger than 100.
The field exit concept lets you create a special function module that contains this logic.
You assign the special function module to the data element BBBNR. You then assign the module to any programs and screens in which users can add new international location numbers. When you activate your field exit, the system automatically triggers your special routine whenever a user enters a company location number.
In 4.6c, you can use "RSMODPRF" program to create field exits.
<b>
User Exit - Example</b>
MODULE user_exit_0001 INPUT
CASE okcode.
WHEN 'BACK OR EXIT'.
CASE sy-dynnr.
WHEN '100'.
SET SCREEN 0.
LEAVE SCREEN.
WHEN '200'.
******************************************************************************
Note that you can write any code that satisfy your needs. ****
But in this case, this was wrote as a sample code for reference sake. ****
And you can test it. ****
******************************************************************************
SET SCREEN 100.
LEAVE SCREEN.
ENDCASE.
ENDCASE.
<b>Links</b>
http://www.erpgenie.com/sap/abap/code/abap26.htm
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
http://www.sapdevelopment.co.uk/enhance/enhancehome.htm
http://www.sap-img.com/abap/what-is-user-exits.htm
http://www.planetsap.com/userexit_main_page.htm
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.sappoint.com/abap/userexit.pdfUser-Exit
http://www.planetsap.com/userexit_main_page.htm
<b>User Exits</b>
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
<b>Reward Points if Useful</b>
Regards
Gokul