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Illustrative Case Study — Hypothetical Project Scenario

SAP S/4HANA Enterprise ERP Modernization: An Illustrative Scenario

A hypothetical automotive components manufacturer runs legacy ERP with fragmented data and heavy customization and considers moving to S/4HANA.

IndustryAutomotive & ManufacturingSAP moduleSAP S/4HANA
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Engineers reviewing production data on a tablet in an automotive components plant

This illustrative case study describes a hypothetical business scenario and proposed consulting approach. It does not represent a verified client engagement or actual project results.

BUSINESS BACKGROUND

The Scenario

A hypothetical automotive components manufacturer operates legacy ERP systems and fragmented processes across procurement, production, finance and inventory.

The organization is considering a transition to SAP S/4HANA to improve process standardization and establish a modern ERP foundation.

Key challenges

  • Fragmented enterprise data
  • Complex legacy customizations
  • Inconsistent master data
  • Limited cross-functional reporting
  • Manual reconciliation
  • Integration dependencies
  • Migration and cutover risks
GRAPHIC A — BUSINESS PROCESS

S/4HANA migration roadmap

  1. 01Discover
  2. 02Assess
  3. 03Design
  4. 04Build
  5. 05Validate
  6. 06Deploy
  7. 07Hypercare
GRAPHIC B — SAP SOLUTION ARCHITECTURE

How the Solution Fits Together

Finance (FI/CO)Procurement (MM)Production (PP)Sales (SD)Legacy interfacesAnalyticsSAP S/4HANA
PROPOSED CONSULTING APPROACH

Implementation Phases

  1. Phase 1

    Discover

    Assess the existing ERP landscape, interfaces, custom developments and business processes.

  2. Phase 2

    Assess

    Conduct readiness assessments, evaluate transformation options and identify risks.

  3. Phase 3

    Design

    Run fit-to-standard workshops and define target business processes and architecture.

  4. Phase 4

    Build

    Configure approved processes, develop required integrations and prepare data migration.

  5. Phase 5

    Validate

    Functional, integration, regression and user acceptance testing.

  6. Phase 6

    Deploy

    Cutover rehearsals, migration validation, go-live preparation and hypercare.

Key SAP considerations

  • S/4HANA deployment approach
  • Finance and logistics process integration
  • Business partner model
  • Data cleansing and migration
  • Custom code assessment
  • Interface remediation
  • Security and authorization design
  • Reporting requirements

Testing & validation

  • End-to-end process scenarios
  • Migrated data reconciliation
  • Interface regression
  • Authorization roles

Unit, integration and user acceptance testing across these scenarios.

Illustrative dashboard · sample data only

Custom objects reviewed
75%
Data objects cleansed
60%
Interfaces remediated
45%
Test cases passed
82%

Not a real system or measured result.

Illustrative potential benefits

  • Greater process standardization
  • Improved cross-functional visibility
  • More consistent master data
  • Simplified integration architecture
  • A modern foundation for future capabilities

No numerical improvements are claimed without verified measurement data.

Key considerations & lessons

  • Start data cleansing in parallel with design
  • Retire unused custom code instead of migrating it
  • Plan at least two full cutover rehearsals

Related SAP services

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This illustrative case study describes a hypothetical business scenario and proposed consulting approach. It does not represent a verified client engagement or actual project results.

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