user exits & badi

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User-Exits

2010 StraVis IT Solutions Pvt Ltd.

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-ExitsMenu-Exits Screen-Exits

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Information on existing User-Exits

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Function-Exits

SAP Original Code SAPMF02K

Function Module

INCLUDE Program

function exit_sapmf02k_001.

*----------------------------------* * include zxf05u01. *

*----------------------------------* include zxf05u01. This INCLUDE program is where you will write the customer-specific code.

call customer-function 001...

endfunction.

This INCLUDE program will not be overwritten with an SAP upgrade because it is not SAP original code.6

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Call Customer-Function Versus Call Function

Both of these CALL statements refer to the function module EXIT_SAPMF02K_001.

call function EXIT_SAPMF02K_001

The CALL CUSTOMER-FUNCTION statement will only execute the function module if the module is activated. 2010 StraVis IT Solutions Pvt Ltd.

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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 Program5. 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 customerfunction 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

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*-----------------------------* INCLUDE ZXF05U01

Write your code in this INCLUDE program.

*-----------------------------if sy-uname = DANTHON.

615

endif.

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Activating Function-Exit

PROJECT 1

PROJECT 2

(can be activated/deactivated)

(can be activated/deactivated)

Enhancement 1

Enhancement 2

X X

Enhancement 3

Function Exit

Screen Exit

Function Exit

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-Exits1. Locate Function-Exit(s)2. Go to Function Module 3. Create INCLUDE Program

4. Code in INCLUDE Program5. 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 SAPsource 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 BADIIf enhancement needs to be different based on some parameter (e.g. country-specific or companycode 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..32

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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.33

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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 inthe 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