How ABAP interviews are structured in 2026
A fresher-level ABAP interview usually runs in three passes: fundamentals to confirm you actually wrote programs during training, enhancement and integration questions to check breadth, and a debugging or performance scenario to watch you reason. With most Indian projects now on S/4HANA, panels increasingly add one modern question — CDS views or class-based development — to filter out candidates trained on decade-old material. Everything below is asked at real interviews our learners attended; it is also, not coincidentally, the spine of our SAP ABAP course. For the market context behind these interviews, see our guide to SAP jobs in Kerala.
Data dictionary questions
1. What is the ABAP data dictionary?
The central, system-wide repository (transaction SE11) where data definitions live: tables, views, data elements, domains, structures, search helps and lock objects. Everything defined once in the dictionary is reused consistently across programs — that reuse is the whole point.
2. Explain domain, data element and field.
A domain defines technical attributes — type, length, value range. A data element sits on a domain and adds semantics: field labels and documentation. A table field then uses a data element. This layering means one technical definition can serve many business meanings.
3. What are the types of tables in SAP?
Transparent tables map one-to-one to a database table and hold business data. Pooled and cluster tables were many-to-one constructions for system data in ECC — worth knowing that S/4HANA eliminates them in favour of transparent tables, which signals you know the current landscape.
4. What is a lock object?
A dictionary object that generates ENQUEUE and DEQUEUE function modules so two users cannot change the same data simultaneously. Mentioning that locks are logical SAP locks, not database locks, earns credit.
Internal tables, reports and modularization
5. What are internal tables and their types?
Temporary tables in program memory used to process data sets. Standard tables allow index access with linear search by key; sorted tables keep entries ordered and allow binary search; hashed tables offer near-constant access by unique key. Choosing the right type is a performance decision, and interviewers love a candidate who says so.
6. Classical report versus ALV report — which and why?
Classical reports write output line by line with WRITE statements and events like TOP-OF-PAGE. ALV (ABAP List Viewer) delivers sorting, filtering, totals and layout variants out of the box — via function modules like REUSE_ALV_GRID_DISPLAY or, in current practice, the class CL_SALV_TABLE. Real projects use ALV; classical remains an interview staple for testing report-event knowledge.
7. What is modularization in ABAP?
Splitting programs into reusable units: includes for code organisation, subroutines (legacy), function modules for remote-enabled reusable logic, and methods in classes — the modern standard. Say clearly that new development belongs in methods; it dates your training well.
8. What is the difference between SY-TABIX and SY-INDEX?
SY-TABIX holds the current row of an internal table operation; SY-INDEX counts loop passes in DO/WHILE loops. Small question, frequently asked, and a quick test of hands-on time.
Enhancements and interfaces: BAPI, BADI, user exits
9. What is a BAPI?
A standardised, remote-enabled method of a business object — for example BAPI_PO_CREATE1 for purchase orders — used to run business transactions programmatically from other programs or external systems. BAPIs are stable interfaces SAP promises to maintain, which is why integrations prefer them to direct table updates — which are forbidden anyway.
10. BADI versus user exit — what is the difference?
Both let you add custom logic to standard processes without modification. User exits are the older technique — empty subroutines or function-module hooks, generally single-implementation. BADIs are object-oriented enhancement points that support multiple implementations and filters, and they are the current standard within the enhancement framework. If asked which to choose: BADI where one exists.
11. What is an enhancement point?
Part of the enhancement framework: explicit or implicit positions in standard code where custom logic can be inserted without modifying the original — keeping upgrades clean. Knowing that implicit points exist at the start and end of most includes is a nice detail.
12. When would you use an RFC?
Remote function calls let function modules execute in another system — the base mechanism under BAPIs and much system-to-system integration. Distinguish synchronous, asynchronous and transactional RFC in one line each and you have answered at fresher depth.
OOP ABAP, CDS views and scenario questions
13. Explain the basics of object-oriented ABAP.
Classes bundle data and behaviour; objects are their runtime instances; methods replace subroutines; interfaces define contracts; inheritance and casting enable polymorphism. New SAP development — ALV with CL_SALV_TABLE, BADI implementations, RESTful application programming — is class-based, so a fresher who cannot define a class in SE24 looks undertrained.
14. What is a CDS view and why does it matter?
A Core Data Services view is defined in ABAP development tools and executed in the HANA database, pushing calculation and aggregation down to the data instead of hauling data up to the application server — the code-pushdown principle that underlies S/4HANA and Fiori reporting. At fresher level, that two-sentence answer plus knowing annotations exist is genuinely sufficient.
15. Scenario: a report that ran fine now times out. What do you check?
Reason aloud: look for SELECT statements inside loops, missing index support in WHERE clauses, SELECT * where a field list would do, and nested loops over large internal tables — then mention SQL trace (ST05) and runtime analysis (SAT) as the tools you would confirm with. Method beats memory here.
16. Scenario: a user reports a short dump. What do you do?
Open ST22, read the dump category and the exact line, check recent transports, reproduce in the debugger with a breakpoint before the failing statement, and fix or escalate with evidence. Interviewers ask this to see whether you panic or follow a process.
How to answer as a fresher, and prepare properly
Technical panels forgive gaps; they do not forgive pretending. If a question lands outside your training, say what you do know and how you would find the rest — that answer, delivered calmly, has gotten our learners through more interviews than any memorised definition. Bring evidence: the programs you wrote on the practice server, a small ALV report you can describe line by line, a debugging session you actually ran. One genuinely understood program beats fifty rehearsed answers.
Pace your revision, too. In the final fortnight before interviews, rebuild one complete object per day on the practice server — a table with a lock object, an ALV report, a simple class, a BADI implementation — and narrate what you are doing out loud as you go. Explaining code verbally is a separate skill from writing it, and it is the skill the interview actually tests. Candidates who practise the narration walk in noticeably calmer.
Two practical notes for the Kerala market. First, certification is a shortlisting aid, not a requirement — weigh it after reading our honest take on SAP certification cost in India. Second, mock interviews change outcomes: our placements team rehearses learners against this exact question bank, with structured placement support through 400+ corporate partners, and hands-on project exposure is available through our internships. Fees for the ABAP programme are shared in a free counselling call — no rate cards, no surprises.
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