55516020 User Exits Badi
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Transcript of 55516020 User Exits Badi
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2010 StraVis IT Solutions Pvt Ltd.
User-Exits
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Overview
If you try to change the SAP
program SAPMF02K, you will be prompted to enter the
access key for that object.
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Overview
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User-Exits
Function-Exits
Menu-Exits
Screen-Exits
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Information on existing User-Exits
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Function-Exits
*----------------------------------*
* include zxf05u01. *
*----------------------------------*
This INCLUDE program is
where you will write the
customer-specific code.
call customer-function
001...
function
exit_sapmf02k_001.
include zxf05u01.
endfunction.
SAP Original Code
SAPMF02KFunction Module INCLUDE Program
This INCLUDE program
will not be overwritten
with an SAP upgrade
because it is not SAP
original code.
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Call Customer-Function Versus Call Function
Both of these CALL
statements refer to
the function module
EXIT_SAPMF02K_001.
The CALL CUSTOMER-FUNCTION
statement will only execute the function
module if the module
is activated.
call function EXIT_SAPMF02K_001
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Business Case Scenario
When the user updates a vendor record, you want to
insert a record into an update log that contains the
vendor number and name of the updated record.
UPDATE LOGVendor #Vendor name
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Steps to Coding a Function-Exit
1. Locate Function-Exit(s)
2. Go to Function Module
3. Create INCLUDE Program
4. Code in INCLUDE Program
5. Activate Function-Exit
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Locate Function-Exit(s)
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Locate Function-Exit(s)
In program SAPMF02K, search for the string call customer-function in the main program to find all of the function-exit(s) in
the program.
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Locate Function-Exit(s)
Double-click anywhere on the
call customer-function 001 statement to go to that line in
the SAP program.
In program SAPMF02K, there is only one function-exit
at line 83 of MF02KFEX.
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Go to Function Module
Double-click on 001 of the CALL CUSTOMER-FUNCTION
001 statement in the SAP program to go to the function
module EXIT_SAPMF02K_001.
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Create INCLUDE Program
Double-click on the INCLUDE
ZXF05U01 statement in the
function module to create the
INCLUDE program.
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Code in INCLUDE Program
1
2
6
*------------------------------
* INCLUDE ZXF05U01
*------------------------------
if sy-uname = DANTHON.
endif.
Write your code in
this INCLUDE
program.
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Activating Function-Exit
X
X
PROJECT 1
(can be activated/deactivated)
Enhancement 1
Enhancement
2
Function
Exit
Screen
Exit
Function
Exit
PROJECT 2
(can be activated/deactivated)
Enhancement3
Function
Exit
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User-Exit Transactions
CMOD
SMOD
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Transaction CMOD
In transaction CMOD, type in the
name of your project and press the
CREATE pushbutton.
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Transaction CMOD
Once you SAVE your project, you
can add as many enhancements as
you want by pressing the SAP
enhancements pushbutton.
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Transaction CMOD
Add the enhancements you want
included in
the project.
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Transaction CMOD
After saving your project, you need
to ACTIVATE it.
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Transaction SMOD
With the name of the enhancement, you
can display its components.
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Transaction SMOD
In the case of enhancement
SAPMF02K, there is only one user-exit a function-exit using
the function module
EXIT_SAPMF02K_001.
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Summary
Function-Exits
Menu-Exits
Screen-Exits
1. Locate Function-Exit(s)
2. Go to Function Module
3. Create INCLUDE Program
4. Code in INCLUDE Program
5. Activate Function-Exit
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Business Add-Ins
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What is BAdi
New SAP enhancement technique
To accommodate user requirements not available / too specific to be included in the SAP
standard Program
Based on ABAP Objects It has Interfaces & Methods
Guaranteed upward compatibility of all Business Add-In interfaces
Release upgrades do not affect enhancement calls from within the standard software
nor do they affect the validity of call interfaces
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BADI vs. User Exit
In User Exits, an application programmer predefines exit points in a source that allow specific
industry sectors, partners, and customers to attach additional software to standard SAP
source code without having to modify the original object.
The users of Business Add-Ins can customize the logic they need or use a standard logic if
one is available. They can be inserted into the SAP System to accommodate user
requirements too specific to be included in the standard delivery.
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BAdi & Customer-Exit
Though different enhancement technique, BAdi has following distinct features
Uses Object oriented approach
Two parts - Definition and its Implementation - definition can either be SAP provided or
user may also create it
no longer assumes a two-system infrastructure (SAP and customers)
allows multiple levels of software development (by SAP, partners, and customers, and
as country versions, industry solutions, and the like)
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BAdi where to find
Look for BAdi in IMG and in component hierarchy (using transaction SE18)
Create own implementation of the add-in (complete coding for Methods) and activate
Enhancement's active components are called at runtime.
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BAdi Definition (SE18)
To include Business Add-Ins in the program
Define an interface for the enhancement in the SAP menu under Tools-> ABAP
Workbench -> Utilities -> Business Add-Ins -> Definition (transaction SE18)
Call the interface at the appropriate point in application program
Customers can then select the add-in and implement it according to their needs
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BAdi Implementation (SE19)
ABAP Workbench ->Utilities -> Business Add-Ins -> Implementation (transaction SE19)
Find the suitable Business Add-Ins present in system (Use IMG or Component hierarchy)
Use Add-Ins Documentation to understand functionality & to decide
Implement the Add-Ins
a class is created with the same interface
Finalize coding for the method
Implementations are discrete transport objects and lie within the namespace of the person
or organization implementing them
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Filter dependent BADI
If enhancement needs to be different based on some parameter (e.g. country-specific or company-
code specific), separate implementation of the same Add-In can be created and activated.
At run time, the specific implementation will be executed
Possible through filter dependent BADI.
What qualifies as a filter?
A Data element Underlying domain may contain a maximum of 30 characters and must be of
Character type
The data element must Either have a search help with a search help parameter of the same type
as the data element and this parameter must serve as both the import and export parameter or
the element's domain must have fixed domain values or a value table containing a column with
the same type as the data element
Before implementing filter objects to a BADI. We need to deactivate all the implementation for
that BADI..
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Contd..
Click on the F4 on the FILTER TYPE field name and enter some search criteria to find a
relevant data element.
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Contd..
Click on the save button and active the BADI definition.
Now to ensure that the interface parameters have been adjusted by the system click on the
interface tab and then double click on any method to see the list of parameters.
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Contd..
Select the menu IMPLEMENTATION -> DISPLAY.
The system will display all the implementation if it has more than one implementation.
Select the first implementation and click on the continue button
You will notice that now the implementation is capable of adding filters for the user names. You
can click on the INSERT ROW button to add any new filters.
And as you can see from the screen shot below the new parameter list is automatically available in
the implementation part.
Now lets use this filter type and make changes to the program.
Click on the save and activate the method.
Return to the initial screen of the implementation and define a filter value by clicking on the
INSERT ROW button under the filter section. The filter value acts like a condition. Only if, during
the runtime the filter value matches the method will get executed. Once done click on save and
activate the implementation.
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Thank you