What is BADI
Business Add-Ins (BADI) in SAP ABAP: An In-depth Tutorial
Business Add-Ins (BADI) are a powerful and flexible
enhancement technique used in SAP ABAP (Advanced Business Application
Programming) to modify the standard behavior of SAP applications without
modifying the original source code. Introduced with SAP release 4.6, BADI provides a clean and structured approach for customizing SAP applications,
ensuring that enhancements can be easily managed and maintained during system
upgrades. In this tutorial, we will delve into the fundamentals of BADI, its
components, and how to implement and use it effectively in SAP ABAP
development.
1. Understanding Business Add-Ins (BADI)
A Business Add-In (BADI) is an object-oriented enhancement
concept that allows developers to inject custom logic at specific predefined
points in standard SAP processes. BDIs provide a way for developers to create their
own classes or methods and then link them to the standard SAP objects where the
enhancements are needed.
2. BADI Components
The main components of a BADI include:
2.1. BADI Definition A BADI is defined by a unique
name and acts as an interface for custom implementations. The BADI definition
is created using transaction SE18, and it contains method declarations
that must be implemented in the custom classes.
2.2. Filter Value A filter value is a criteria that
allows specific instances of a BADI to be executed. It is used when multiple
implementations of a BADI exist, and only a specific one needs to be triggered
based on certain conditions.
2.3. BADI Implementation BADI implementations are
ABAP classes that implement the methods declared in the BADI definition. Each
implementation contains the custom logic to enhance the standard behavior.
3. Implementing a BADI
3.1. Creating a BADI Definition To create a BADI
definition, follow these steps:
1. Launch
transaction SE18.
2. Enter
a unique BADI name and click on "Create".
3. Define
the method(s) that can be implemented in the BADI implementation class.
3.2. Implementing a BADI To implement a BADI, follow
these steps:
1. Create
an ABAP class using transaction SE24.
2. Inherit
the BADI definition interface in the class definition.
3. Implement
the method(s) declared in the BADI definition.
4. Add
the required logic within the implemented methods.
3.3. Activating the BADI After implementing the BADI,
it needs to be activated for use. To do this, follow these steps:
1. Go
to transaction SE19.
2. Enter
the BADI name and click on "Filter".
3. Choose
the appropriate implementation and set it as active.
4. Using BADI in ABAP Development
4.1. Finding BADI for a Particular Functionality To
find a BADI relevant to a specific SAP application functionality, use the
following techniques:
1. Search
in SAP documentation or available implementation guides.
2. Look
for user exits or enhancement points, as some are implemented using BADIs.
3. Check
the function modules used in the relevant SAP program and explore the BADIs
associated with those function modules.
4.2. Scoping and Filter Values Filter values allow
you to control the scope of BADI execution. Before implementing a BADI, ensure
that you understand the significance of the filter value and set it
appropriately to trigger the BADI only when needed.
4.3. Debugging and Testing While implementing a BADI,
it is essential to perform thorough testing and debugging to ensure that the
custom logic works as expected and does not interfere with the standard SAP
processes.
5. Tips and Best Practices
5.1. Avoid Overuse Use BADIs judiciously and avoid
overusing them. Unnecessary implementation of BADIs can lead to performance
issues and unnecessary complexity in the system.
5.2. Proper Documentation Document the purpose,
functionality, and usage of implemented BADIs. This will help other developers
understand the enhancements and promote collaboration.
5.3. BADI Enhancement Spots SAP provides BADI enhancement
spots for many standard transactions. These enhancement spots group related
BADIs together, making it easier to find and implement multiple BADIs related
to a specific transaction or process.
6. Conclusion
Business Add-Ins (BADIs) are a valuable tool in SAP ABAP
development, providing a structured and modular approach to enhance standard
SAP applications. By using BADIs, developers can ensure their customizations
are future-proof and can be easily maintained across system upgrades.
Understanding how to create, implement, and use BADIs effectively empowers ABAP
developers to tailor SAP solutions to meet specific business requirements while
keeping the core functionality intact.
In conclusion, embracing the power of Business Add-Ins in
SAP ABAP development enables organizations to leverage SAP's standard processes
while customizing them to optimize their business operations. With a clear
understanding of BADIs and their components, developers can efficiently enhance
SAP applications to better align with business needs, ensuring a more efficient
and agile ERP system.
BADI represents Business Add Ins Just like Customer Exits , BADI assist with snaring custom improvements to SAP usefulness. Illustration of a BADI: In exchange CAT2 - Time Sheet Entry, HR wishes to incorporate an intuitive affirmation that purposely submitting wrong information is reason for excusal. This can be accomplished utilizing BADI
Highlights:
BADI's are Object Oriented
They can be executed on various occasions
It doesn't need SAP Software Change Registration
No impact on discharge overhauled on the working of BADI's
Characterize and Implement a BADI
This elaborate three stages
Stage 1 Creating BADI Definition : Transaction SE18.
Experience the difference |
Menu exits
Capacity Module Exit: It grants client to add code through an ability module at a specific region in a SAP application program Screen Exit: It licenses client to add fields to a screen in a SAP program through a subscreen. The subscreen is called inside the standard screen's stream logic. Menu Exit: It licenses client to add things to a pulldown menu in a standard SAP program. These things may be used to call add-on activities or custom screens. Occurrences of Customer Exits
Outline of a Screen Exit:
In return CAT2 - Time Sheet Entry, HR wishes to consolidate a smart confirmation that deliberately submitting mistaken data is justification behind dismissal. Outline of a Function Module Exit: The association needs the bank nuances of the Vendors in the Vendor creation to be required event .So it ought to mark an error message that 'Assuming no one cares either way, Enter the bank nuances'
What is a USER EXIT?
Client Exit fill a comparative need as Customer Exits yet they are open only for the SD module. The exit is done as a call to a Function Module. The code is formed by the architect. Certainly comprehend User Exit in SD is MV45AFZZ
USEREXIT_FIELD_MODIFICATION - To change screen credits
USEREXIT_SAVE_DOCUMENT - To perform assignments when client hits Save
USEREXIT_SAVE_DOCUMENT_PREPARE
USEREXIT_MOVE_FIELD_TO_VBAK - When client header changes are moved to header work area.
USEREXIT_MOVE_FIELD_TO_VBAP - When client thing changes are moved to SAP thing work area.