Creation of BADI's Definition, why?

Question

Hello everyone,
i hope someone can explain to me, why we should create BADI's definition.
This is my point:
BADI's are enhancements, that are available in the Standard SAP, to offer the possibilty of changing/improving the standard code to respond correctly to a company/customer needs. Customer can implement these definitions.
So, even if we create a new BADI definition, this could'n be trigger/active by/in the standard code.
So, the possibility of creating "customer" BADIS definition, is for when you develop a customer program, and you want to create an enhancements in that development?
I associate the BADI's definition to enhancements made by SAP developers in SAP Standard, and badi's implementation to customer developers.
It's like an analogy with SMOD( SAP ) and CMOD (CUSTOMER).
Could somone explain to me, the benefits from creating BADI's definition's from customer point of view?
Thanks for your attention,
Pedro

Answer 1

Hi,
Have a look at below links.
http://help.sap.com/saphelp_nw04/helpdata/en/e6/d54d3c596f0b26e10000000a11402f/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/c2/eab541c5b63031e10000000a155106/frameset.htm
Business add-ins are enhancements to the standard version of the system.
Business Add-In is a new SAP enhancement technique based on ABAP Objects.
They can be inserted into the SAP system based on specific user requirements.
Each Business Add-In has:
• at least one Business Add-In definition
• a Business Add-In interface
• a Business Add-In class that implements the interface
In order to enhance a program, a Business Add-In must first be defined
Subsequently two classes are automatically generated:
• An interface with ‘IF_EX_’ inserted between the first and second characters of the BADI name.
• An adapter class with ‘CL_EX_’ inserted between the first and second characters of the BADI name.
The Application developer creates an interface for this Add-In.
There are multiple ways of searching for BADI.
• Finding BADI Using CL_EXITHANDLER=>GET_INSTANCE
• Finding BADI Using SQL Trace (TCODE-ST05).
• Finding BADI Using Repository Information System (TCODE- SE84).
1. Go to the Transaction, for which we want to find the BADI, take the example of Transaction VD02. Click on System->Status. Double click on the program name. Once inside the program search for ‘CL_EXITHANDLER=>GET_INSTANCE’.
Make sure the radio button “In main program” is checked. A list of all the programs with call to the BADI’s will be listed.
The export parameter ‘EXIT_NAME’ for the method GET_INSTANCE of class CL_EXITHANDLER will have the user exit assigned to it. The changing parameter ‘INSTANCE’ will have the interface assigned to it. Double click on the method to enter the source code.Definition of Instance would give you the Interface name.
2. Start transaction ST05 (Performance Analysis).
Set flag field "Buffer trace"
Remark: We need to trace also the buffer calls, because BADI database tables are buffered. (Especially view V_EXT_IMP and V_EXT_ACT)
Push the button "Activate Trace". Start transaction VA02 in a new GUI session. Go back to the Performance trace session.
Push the button "Deactivate Trace".
Push the button "Display Trace".
The popup screen "Set Restrictions for Displaying Trace" appears.
Now, filter the trace on Objects:
• V_EXT_IMP
• V_EXT_ACT
Push button "Multiple selections" button behind field Objects
Fill: V_EXT_IMP and V_EXT_ACT
All the interface class names of view V_EXT_IMP start with IF_EX_. This is the standard SAP prefix for BADI class interfaces. The BADI name is after the IF_EX_.
So the BADI name of IF_EX_CUSTOMER_ADD_DATA is CUSTOMER_ADD_DATA
3. Go to “Maintain Transaction” (TCODE- SE93).
Enter the Transaction VD02 for which you want to find BADI.
Click on the Display push buttons.
Get the Package Name. (Package VS in this case)
Go to TCode: SE84->Enhancements->Business Add-inns->Definition
Enter the Package Name and Execute.
Here you get a list of all the Enhancement BADI’s for the given package MB.
For more info have a look at below links:
http://support.sas.com/rnd/papers/sugi30/SAP.ppt
http://www.sts.tu-harburg.de/teaching/sap_r3/ABAP4/abapindx.htm
http://members.aol.com/_ht_a/skarkada/sap/
http://www.ct-software.com/reportpool_frame.htm
http://www.saphelp.com/SAP_Technical.htm
http://www.kabai.com/abaps/q.htm
http://www.guidancetech.com/people/holland/sap/abap/
http://www.planetsap.com/download_abap_programs.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975cc43b111d1896f0000e8322d00/content.htm
/people/thomas.weiss/blog/2006/04/03/how-to-define-a-new-badi-within-the-enhancement-framework--part-3-of-the-series
/people/thomas.weiss/blog/2006/04/18/how-to-implement-a-badi-and-how-to-use-a-filter--part-4-of-the-series-on-the-new-enhancement-framework
How to develop BADI
Regards,
Ram