Introduction to Application Programming on SAP S/4HANA — Lesson 2: ABAP Syntax, Data Types, Internal Tables, Modularization, Exceptions, and Object-Oriented Foundations

Learning Objectives

• Explain the SAP structures, data, settings, roles, and dependencies governing ABAP language and data processing.
• Perform and validate modularization, exceptions, and objects using reviewable system evidence.
• Evaluate the condition where a program returns correct results in development but fails in another client because data access, authorization, package, and transport assumptions were not tested and select proportionate corrective action.

Detailed Topics

• ABAP Syntax applied to the course scenario, expected SAP behavior, dependencies, and evidence.
• Data Types applied to the course scenario, expected SAP behavior, dependencies, and evidence.
• Internal Tables applied to the course scenario, expected SAP behavior, dependencies, and evidence.
• Modularization applied to the course scenario, expected SAP behavior, dependencies, and evidence.
• Exceptions applied to the course scenario, expected SAP behavior, dependencies, and evidence.
• and Object-Oriented Foundations applied to the course scenario, expected SAP behavior, dependencies, and evidence.

Instructor Demonstration

The instructor traces a new SAP developer building a small, supportable application that reads business data and exposes controlled functionality. The walkthrough connects navigation, configuration or process logic, system messages, and evidence captured in the S/4HANA application programming exercise and code-review portfolio. It also tests the exception where a program returns correct results in development but fails in another client because data access, authorization, package, and transport assumptions were not tested.

Hands-On Exercise

Complete a controlled SAP exercise covering ABAP Syntax, Data Types, Internal Tables, Modularization, Exceptions, and Object-Oriented Foundations and preserve the verified result in the S/4HANA application programming exercise and code-review portfolio.

1. Confirm scope, prerequisites, master data, roles, dependencies, and acceptance criteria.
2. Execute the workflow while recording settings, transactions, outputs, and system messages.
3. Test normal behavior, one boundary condition, and the stated exception.
4. Document corrections, evidence, ownership, retest criteria, and handover actions.

Scenario Analysis

• Identify which object, rule, setting, or process step most strongly influences ABAP language and data processing.
• Compare two defensible responses and explain business, technical, control, and support trade-offs.
• Determine how the S/4HANA application programming exercise and code-review portfolio should be approved, retained, retested, and updated.

Troubleshooting Guidance

Start where expected SAP behavior first differs from the observed result. Check master data, configuration sequence, authorization, integration, status, and transaction evidence separately. Treat “a program returns correct results in development but fails in another client because data access, authorization, package, and transport assumptions were not tested” as a hypothesis until system settings, logs, documents, and outcomes confirm the cause.

Validation Checklist

• Required SAP structures, master data, roles, settings, and dependencies are present.
• The S/4HANA application programming exercise and code-review portfolio connects each conclusion to objective, reviewable evidence.
• Normal processing, the boundary condition, integration behavior, and exception were tested.
• Corrections, ownership, retest criteria, documentation, and operational handover are complete.

Lesson Outcome

Learners can apply ABAP Syntax, Data Types, Internal Tables, Modularization, Exceptions, and Object-Oriented Foundations, explain the resulting SAP behavior, and defend the outcome through the S/4HANA application programming exercise and code-review portfolio.