80+ SAP Abap Developer Interview Questions and Answers

Objects generated after TMG creation in SAP ABAP

• After creating a TMG (Table Maintenance Generator), a function group is generated.

• The function group contains function modules for maintenance screens, list displays, and authorization checks.

• A maintenance view is also generated, which is used to maintain the table data.

• A maintenance dialog is created, which is used to display the maintenance screens.

• A maintenance object is generated, which is used to store the maintenance dialo...read more

Authorization objects in ABAP control access to objects for assigned users, preventing unauthorized access.

• Authorization objects are used to control access to specific objects in ABAP programs.

• They define which users have access to certain objects and what actions they can perform.

• Authorization objects are assigned to roles, which are then assigned to users.

• Examples of authorization objects include S_PROGRAM for program access and S_TABU_DIS for table maintenance access.

To retrieve a previous version of a smartform in SAP ABAP, you can use the transport request system.

• Use the transport request system to track changes and versions of smartforms.

• Identify the transport request containing the previous version of the smartform.

• Import the transport request to revert back to the previous version.

• Ensure to test the smartform after reverting to the previous version.

At selection screen event is used to capture user input before executing a report.

• At selection screen event is triggered before the selection screen is displayed to the user.

• It is used to validate user input and set default values for selection screen parameters.

• It can also be used to dynamically modify the selection screen based on user input.

• Example: At selection screen event can be used to restrict the input values for a parameter to a specific range.

• Example: At selection ...read more

Containers are used in ABAP development to display output on the screen.

• Containers are used to hold and display UI elements in ABAP programs.

• They can be used to display text, images, tables, and other UI components.

• Containers can be added to screens using the SAP GUI for Windows or Web Dynpro ABAP technology.

• Example: DATA container TYPE REF TO cl_gui_container.

• Example: container->add( text ).

Debugging background jobs using Tcode JDBG in SAP ABAP.

• Go to transaction code JDBG in SAP system.

• Enter the job name and job count of the background job you want to debug.

• Set breakpoints in the ABAP code of the background job.

• Execute the background job and it will stop at the breakpoints for debugging.

• Use standard debugging tools like variables, watchpoints, etc. to analyze and troubleshoot the job.

Questions related to SAP ABAP development including transport management, debugging, ALV reports, Smartforms, and module pool programming.

• Transport management involves moving changes made in development to testing and production environments.

• Debugging is the process of identifying and fixing errors in code.

• ALV reports are used to display data in a tabular format with various formatting options.

• Smartforms are used to create and customize forms for printing.

• Module pool programm...read more

Control break statement should be used with caution inside a loop in SAP Abap

• Ensure that the control break statement is used only when necessary

• Make sure that the loop is not too large as it can impact performance

• Test the code thoroughly to ensure that the control break statement is working as expected

Clients often request enhancements to improve functionality, performance, or user experience in SAP ABAP applications.

• Enhancement to add new fields in an existing report based on user feedback.

• Modification of an existing ALV report to include sorting and filtering options.

• Performance tuning of a batch job that processes large volumes of data.

• Integration of a new API to fetch real-time data from external systems.

• Creation of custom validation checks during data entry to ensure ...read more

BAPI is a standard interface provided by SAP while Customer Exit is a user-defined enhancement point.

• BAPI is used for accessing SAP functions and data while Customer Exit is used for customizing SAP standard functionality.

• BAPI is a pre-defined interface while Customer Exit is a user-defined interface.

• BAPI is used for external communication while Customer Exit is used for internal communication.

• Examples of BAPI include BAPI_PO_CREATE1, BAPI_MATERIAL_SAVEDATA, etc. while exampl...read more

Session method and call transaction are two techniques for BDC in SAP ABAP, differing in execution and data handling.

• Session Method: Processes data in batches, allowing for error handling and review before execution.

• Call Transaction: Executes immediately, suitable for real-time processing without intermediate steps.

• Example of Session Method: Using BDC sessions to upload large volumes of data, where errors can be corrected before final execution.

• Example of Call Transaction: Di...read more

ABAP dumps can be analyzed using transaction codes ST22/ST23 in SAP.

• Use transaction code ST22/ST23 to access the ABAP dump analysis tool.

• Review the short dump overview to see a list of recent dumps.

• Click on a specific dump to view detailed information such as error messages, program flow, and variables.

• Analyze the dump to identify the root cause of the issue and take necessary actions to resolve it.

Watch points in debugging allow you to monitor variable changes during program execution in ABAP.

• Watch points are set to pause execution when a specified condition is met.

• To add a watch point, use the debugger and navigate to the variable you want to monitor.

• Right-click on the variable and select 'Create Watchpoint'.

• You can specify conditions for the watch point, such as 'value changes' or 'specific value'.

• When the program execution reaches the watch point, it will stop, allo...read more

Use EXPORT/IMPORT parameters or global variables to share data between function modules in ABAP.

• Use EXPORTING and IMPORTING parameters in function modules to pass variables directly.

• Example: FUNCTION ZFM_ONE EXPORTING VALUE(var1) TYPE i.

• In another FM, use IMPORTING to retrieve the value: FUNCTION ZFM_TWO IMPORTING VALUE(var1) TYPE i.

• Alternatively, define global variables in a common include file to share data across FMs.

• Example: DATA: gv_var1 TYPE i. This can be accessed in a...read more

Hiding fields in SAP module pool programming can enhance user experience by reducing clutter.

• Use the 'SET SCREEN' statement to control field visibility.

• Utilize the 'MODIFY SCREEN' statement to hide specific fields.

• Example: MODIFY SCREEN 1000. LOOP AT SCREEN. IF SCREEN-NAME = 'FIELD1'. SCREEN-INPUT = '0'. ENDIF. ENDLOOP.

• Set the 'SCREEN-ACTIVE' attribute to '0' for fields you want to hide.

• Use the 'FIELD-SYMBOLS' to dynamically hide fields based on conditions.

Smartforms are a tool in SAP ABAP used to create and maintain forms for printing purposes.

• Smartforms are used to design and generate forms like invoices, purchase orders, etc.

• Different windows in smartforms include main window, secondary window, and table window.

• Main window is the primary area where the form content is displayed.

• Secondary window is used for additional information like headers or footers.

• Table window is used to display tabular data in a structured format.

HRSP (High-Resolution Support Package) is a method for implementing SAP notes and updates, ensuring system stability and performance.

• HRSP Implementation: HRSP is applied through the SAP Maintenance Planner, allowing for the installation of multiple notes and updates in one go.

• Side Effect Notes: These are additional notes that may be required when implementing a primary note, ensuring compatibility and preventing issues.

• Example of HRSP: For instance, if a new feature is introd...read more

BADIs are Business Add-Ins for enhancing SAP applications; explicit enhancements are defined by developers, while implicit are predefined.

• BADIs (Business Add-Ins) allow for custom enhancements in SAP applications without modifying standard code.

• Explicit enhancements are defined by developers in specific locations, allowing for targeted modifications.

• Example of explicit enhancement: Adding custom logic in a user exit for a specific transaction.

• Implicit enhancements are predefi...read more

TMG One Step Two Step Difference

• TMG (Transaction Variant) is a tool used to customize SAP transactions

• One-step TMG allows you to make changes directly in the transaction screen

• Two-step TMG requires you to create a separate variant and then assign it to the transaction

• One-step is faster but less flexible, while two-step is more flexible but requires more effort

Technical aspects of SAP ABAP development including implementation projects, enhancements, ABAP core, and transaction codes.

• Implementation projects involve customizing SAP systems to meet specific business requirements.

• Enhancements are modifications made to standard SAP programs to add new functionality.

• ABAP core refers to the basic programming language used in SAP development.

• Transaction codes are shortcuts to access specific functions in SAP systems.

• Example: Implementing a ...read more

SAP is a software company that provides enterprise resource planning solutions. Tools used include SAP ABAP, SAP HANA, SAP Fiori, etc.

• SAP stands for Systems, Applications, and Products in Data Processing

• SAP offers a range of tools for various functions such as SAP ABAP for programming, SAP HANA for database management, SAP Fiori for user interface design

• SAP solutions help businesses streamline processes, improve efficiency, and make data-driven decisions

Customer exits can be found using transaction code SMOD or CMOD.

• Transaction code SMOD or CMOD can be used to find customer exits.

• Enter the name of the enhancement in the 'Enhancement' field and click on 'Components' button.

• The customer exits available for the enhancement will be displayed.

• Alternatively, you can also search for customer exits using transaction code SE84.

• Enter the name of the customer exit in the 'Exit Name' field and click on 'Find' button.

• The customer exit wi...read more

Smartforms are more advanced and user-friendly than scripts in SAP ABAP development.

• Smartforms have a graphical interface for designing forms, while scripts use a plain text editor.

• Smartforms support more complex formatting options and dynamic content, while scripts are more limited.

• Smartforms can be previewed and tested directly in the development environment, while scripts need to be executed to see the output.

• Smartforms can be easily transported between systems using trans...read more

Reports and events in interactive reports are key components for displaying and interacting with data in SAP ABAP.

• Reports in interactive reports are used to display data in a tabular format with various columns and rows.

• Events in interactive reports are triggered based on user actions, such as clicking on a column header or selecting a row.

• Events can be used to perform actions like sorting data, filtering data, or navigating to detailed information.

• Examples of events in inter...read more

BADi is a technology used to enhance standard SAP applications while RFC is a protocol used to communicate between systems.

• BADi is used to add custom functionality to standard SAP applications without modifying the original code

• RFC is used to communicate between SAP and non-SAP systems

• BADi is implemented using ABAP code while RFC can be implemented using various programming languages

• BADi is executed within the same system while RFC can be executed between different systems

• Exa...read more

Smartforms are used in SAP ABAP development to create and customize forms for printing.

• Smartforms are a tool in SAP ABAP used to design and generate forms for printing.

• They provide a graphical interface for designing the layout and content of the form.

• Smartforms support various output formats such as PDF, HTML, and print.

• They can be used to create invoices, purchase orders, delivery notes, and other business documents.

• Smartforms can include dynamic data, tables, graphics, and...read more

Partner number in IDOCs represents the unique identifier of the partner system or business partner.

• Partner number is used to identify the sender or receiver of the IDOC.

• It is typically a numerical or alphanumeric value assigned to each partner system or business partner.

• Partner number is crucial for routing and processing IDOCs correctly.

• For example, in a sales order IDOC, the partner number may represent the customer or vendor involved.