Data Warehousing with SAP BW/4HANA – Delta from SAP BW Powered by SAP HANA to SAP BW/4HANA — Lesson 1: BW/4HANA Architecture, Simplified Object Model, Removed Components, Compatibility Modes, and Delta Assessment

Learning Objectives

• Explain the SAP structures, data, settings, roles, and dependencies governing BW/4HANA architecture and simplification.
• Perform and validate removed objects and delta assessment using reviewable system evidence.
• Evaluate the condition where a converted data flow technically activates but produces different results because obsolete objects, transformations, and query dependencies were not remediated and select proportionate corrective action.

Detailed Topics

• BW/4HANA Architecture applied to the course scenario, expected SAP behavior, dependencies, and evidence.
• Simplified Object Model applied to the course scenario, expected SAP behavior, dependencies, and evidence.
• Removed Components applied to the course scenario, expected SAP behavior, dependencies, and evidence.
• Compatibility Modes applied to the course scenario, expected SAP behavior, dependencies, and evidence.
• and Delta Assessment applied to the course scenario, expected SAP behavior, dependencies, and evidence.

Instructor Demonstration

The instructor traces a BW modernization team evaluating the impact of BW/4HANA on existing models, data flows, reporting, and support processes. The walkthrough connects navigation, configuration or process logic, system messages, and evidence captured in the BW-to-BW/4HANA delta assessment and conversion roadmap. It also tests the exception where a converted data flow technically activates but produces different results because obsolete objects, transformations, and query dependencies were not remediated.

Hands-On Exercise

Complete a controlled SAP exercise covering BW/4HANA Architecture, Simplified Object Model, Removed Components, Compatibility Modes, and Delta Assessment and preserve the verified result in the BW-to-BW/4HANA delta assessment and conversion roadmap.

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 BW/4HANA architecture and simplification.
• Compare two defensible responses and explain business, technical, control, and support trade-offs.
• Determine how the BW-to-BW/4HANA delta assessment and conversion roadmap 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 converted data flow technically activates but produces different results because obsolete objects, transformations, and query dependencies were not remediated” 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 BW-to-BW/4HANA delta assessment and conversion roadmap 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 BW/4HANA Architecture, Simplified Object Model, Removed Components, Compatibility Modes, and Delta Assessment, explain the resulting SAP behavior, and defend the outcome through the BW-to-BW/4HANA delta assessment and conversion roadmap.