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Success Story

Integrating Multiple ERP Systems into a Unified SAP S/4HANA Landscape

Discover how TWT supported an enterprise-wide transition to SAP S/4HANA, consolidating multiple ERP systems into a unified platform.

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Integrating Multiple ERP Systems into a Unified SAP S/4HANA Landscape
SAP Environment
SAP S/4HANA
Approach
Custom Integration
The Client

A leading independent energy company delivering reliable and sustainable energy solutions.

The client is a publicly listed independent energy organisation operating asset-intensive energy businesses under strong governance and regulatory frameworks.

About the Client
Diversified upstream oil and gas and midstream operations
Asset-intensive, continuous operating model
Publicly listed with established governance standards
High reliance on enterprise systems for core operations
Energy team reviewing renewable project plans
Project Overview

Consolidating Multiple ERP Systems Into a Unified SAP S/4HANA Landscape

TWT partnered with the client to transition from three different ERP systems to SAP S/4HANA. The engagement focused on ERP consolidation, rebuilding existing integrations, and providing migration advisory support (SAP S/4HANA and RISE with SAP advisory support).

Project Scope
  • Migration from SAP ECC to SAP S/4HANA
  • Consolidation of three ERP systems into a single platform
  • Re-integration of legacy and third-party applications
  • Rebuilding the existing enterprise integration layer
Project Goals
  • Establish SAP S/4HANA as the core enterprise ERP
  • Enable a unified and reliable enterprise data foundation
  • Improve integration stability and long-term supportability
  • Enable a well-governed, low-risk ERP transition
Why the Integration Was Necessary

The integration was necessary to support the move to SAP S/4HANA and establish a single, reliable source of enterprise data.

Energy project team reviewing plant systems on screen
Challenges & Integration Approach

Delivering Scalable, Enterprise-Grade Integration

The client needed to transition to SAP S/4HANA while preserving existing integrations and minimizing disruption across multiple subsidiaries and business-critical systems.

Key Challenges
  • Multiple ERP systems across subsidiaries
  • Existing integrations not compatible with SAP S/4HANA
  • Dependency on legacy and third-party systems
  • Limited tolerance for disruption during ERP consolidation
TWT’s Integration Approach
  • Assessed SAP S/4HANA impact on existing integrations
  • Rebuilt the integration layer for SAP S/4HANA
  • Reworked legacy and third-party integrations
  • Provided SAP S/4HANA and RISE advisory support
Energy team discussing integration approach
Results & Strategic Impact

Results & Strategic Impact

The engagement enabled a successful transition to SAP S/4HANA, supported by a simplified ERP landscape and a stable integration foundation.

Key Outcomes
01
Single source of enterprise data for decision-making
02
Reduced ERP and integration complexity
03
Improved data consistency across subsidiaries
04
Scalable SAP S/4HANA foundation for future growth

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