30 Sap Developer Interview Questions and Answers
Q: What is SAP, and what does it stand for?
SAP stands for Systems, Applications, and Products in Data Processing. It is a leading enterprise resource planning (ERP) software for managing business operations and customer relations.
Q: What are the different modules in SAP?
SAP is divided into various modules, including SAP FI (Financial Accounting), SAP CO (Controlling), SAP MM (Materials Management), SAP SD (Sales and Distribution), SAP HR (Human Resources), and many more.
Q: How do you debug an ABAP program in SAP?
A: To debug an ABAP program, set breakpoints in the code, execute the program in debugging mode (F5), and then use the debugger tools to analyze variable values, step through the code, and identify issues.
Q: Explain the concept of BAPI (Business Application Programming Interface).
BAPIs are standard interfaces provided by SAP to access its business objects and functions. They allow external systems to interact with SAP applications and perform operations like reading data or creating or updating records.
Q: What is a SAP SmartForm?
SAP SmartForms are used for creating and formatting printable forms. They allow you to design structures that can be used for printing or sending via email or fax.
Q: How do you transport SAP objects from one system to another?
SAP objects can be transported using the Transport Management System (TMS). It involves creating a transport request, including the desired objects, and then releasing and importing it into the target system.
Q: What is the difference between custom and transparent tables in SAP?
A: Transparent tables are standard SAP database tables, while custom tables are user-defined tables to store specific data that doesn't fit into the standard SAP tables.
Q: Explain the role of IDoc in SAP.
IDoc (Intermediate Document) exchanges data between SAP and external systems. It acts as a container for data that needs to be transferred and processed between systems.
Q: How do you enhance SAP standard functionality?
A: SAP provides enhancement points, user exits, and BADIs (Business Add-Ins) to enhance standard functionality without modifying the original code.
Q: What are the different types of RFCs (Remote Function Calls) in SAP?
A: There are three types of RFC: Synchronous RFC, Asynchronous RFC, and Transactional RFC.
Q: How can you optimize ABAP code for better performance?
A: ABAP code can be optimized by avoiding nested loops, reducing database access, using field symbols, and optimizing SELECT queries.
Q: What is the purpose of an authorization object in SAP?
Authorization objects define a user's access level to perform specific actions or transactions in SAP.
Q: How do you transport non-ABAP objects like images or text files in SAP?
A: Non-ABAP objects can be transported using the transaction code "AL11" to access the application server, where you can upload or download files.
Q: Explain the use of SAP Scripts.
A: SAP Scripts are used for form printing and are client-dependent. They allow for the creation of complex layouts and text formatting.
Q: What is a BADi (Business Add-In) in SAP, and how is it different from a User Exit?
BADIs and User Exits allow custom code to be inserted into SAP applications. However, BADIs provide more flexibility, allowing multiple implementations to be active simultaneously.
Q: How do you handle errors during data migration in SAP?
During data migration, errors can be logged using the "BDCMSGCOLL" table, and you can implement error handling techniques like batch input session processing to manage and rectify mistakes.
Q: What is SAP HANA, and what are its advantages?
SAP HANA is an in-memory database platform that provides real-time data processing and analytics. Its advantages include faster data retrieval, reduced redundancy, and real-time analysis capabilities.
Q: How can you transport data using the ALE (Application Link Enabling) technique from one SAP system to another?
A: ALE allows data transfer between SAP systems using IDocs. Configuration involves setting up logical systems, ports, partner profiles, and distribution models.
Q: Explain the purpose of the SAP Data Dictionary.
A: The SAP Data Dictionary is used to define and manage data objects like tables, views, data elements, domains, and search helps in SAP systems.
Q: What are the different recording methods available in SAP for creating a BDC (Batch Data Communication) program?
A: The three recording methods are: "Classic," "Extended," and "Variant."
Q: How do you handle IDoc errors during inbound processing?
IDoc errors during inbound processing can be checked using the transaction "BD87" or system-generated workflow notifications.
Q: What is a CDS view in SAP?
A: CDS (Core Data Services) views are used to define semantically rich data models in the ABAP environment, allowing for efficient database access and advanced data processing capabilities.
Q: How can you ensure the security of SAP systems?
A: SAP security can be ensured through measures like role-based access control, regular security audits, applying patches and updates, and employing encryption protocols.
Q: What is the difference between IDoc and RFC?
A: IDoc is used for data exchange between SAP systems or with non-SAP systems, whereas RFC is used for remote function calls within the same or different SAP systems.
Q: How do you transport SAP roles and authorization objects?
A: SAP roles and authorization objects can be transported using the Transport Management System (TMS) or the Role Transporter (transaction "PFCG_TIME_DEPENDENCY").
Q: Explain the purpose of the T-Code "SE80" in SAP.
A: Transaction code "SE80" is used to access the Object Navigator, which allows developers to access various development objects like ABAP programs, function modules, classes, and more.
Q: How do you handle buffering in SAP to optimize system performance?
A: SAP provides different types of buffering like program buffer, table buffer, and statement buffer to reduce database access and improve system performance.
Q: Can you name some common SAP ABAP data types?
A: Common SAP ABAP data types include "CHAR" (character), "NUMC" (numeric characters), "DATE" (date), "TIME" (time), "INT" (integer), and "DEC" (decimal).
Q: What is the use of the "ST22" transaction code in SAP?
A: Transaction code "ST22" displays runtime errors (short dumps) in SAP systems. Developers use this information to analyze and rectify errors.
Q: How do you handle BAPI errors during outbound processing?
A: Outbound BAPI errors can be handled using the RETURN parameter of the BAPI, which provides information about the success or failure of the BAPI call.