BAdI

Lessons in this topic

• Filter-Dependent BAdIsUse filters to run different BAdI logic for different business variants.
• Finding and Implementing a New BAdISE18/SE19, filters and the GET BADI / CALL BADI syntax.
• Fallback Class and Filter DesignEnsuring behaviour when no filter matches.
• Debugging BAdIs in Real ProjectsLearn practical ways to debug BAdI calls and implementations.
• BAdI Implementation Design: Keep Logic CleanDesign BAdI implementations that are small, readable, reusable and support-friendly.
• Classic BAdI vs New BAdILearn the difference between classic BAdIs and new enhancement-framework BAdIs.
• BAdIs in S/4HANA and Clean CoreUnderstand why released BAdIs are important in S/4HANA clean-core extension strategy.
• BAdI Basics: Definition, Interface and ImplementationUnderstand the basic structure of a BAdI and how definition, interface and implementation work together.
• Single vs Multiple BAdI ImplementationsUnderstand how single-use and multiple-use BAdIs behave at runtime.
• Performance and Database Access in BAdIsAvoid performance problems caused by heavy logic inside BAdI methods.

Interview questions covered

• Difference between classic and new BAdI.
• BAdI slows down document save by 200 ms. What do you do?
• What is the difference between classic and new (Enhancement Framework) BAdIs?
• A BAdI implementation is active but not getting triggered. What would you check?
• What is a BAdI?
• BAdI CHANGING parameter is not reflected in caller. Why?
• My BAdI implementation is not triggered. Why?
• What is a BAdI in SAP ABAP?
• How do you design a BAdI implementation for maintainability?
• Why are released BAdIs important in S/4HANA clean-core strategy?
• What is a filter-dependent BAdI?
• How do you find the correct BAdI to enhance a transaction?
• What is the difference between BAdI definition and BAdI implementation?
• How would you structure BAdI implementations for a large program?

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