Skip to the main content.
SWM 400x400

 

GM3_SuccessStory_Logo_317x115

 

From Misalignment to Precision: GM3‘s SAP S/4HANA Transformation

Case Studie

 

Erfolgreiche H4S4 Migration bei Stadtwerke München mit Unterstützung von Natuvion


Download Success Story now

 

Mining | Brisbane, Australia | approx. 1,000 - 5,000 employees 

GM3 is an emerging Australian metallurgical coal mining entity operating two major underground mines in the Illawarra region of New South Wales. GM3 is jointly owned by Golden Energy and Resources (GEAR) and M Resources. With a focus on safe, consistent production and long-term sustainability, GM3 operates critical assets supplying high-quality metallurgical coal to the steel industry, underpinning both the local Illawarra and Macarthur regional economies and global steel supply chains.

Further information is available at gm3.au

 

 

DE_SuccessStory_26_N066_APJ_GM3_FeatureImage_Logo_1200x627_260529 Kopie

Über die Stadtwerke München

Umsatz: 9.672 Mrd. Euro

Industrie: Energie

Produkte | Services: Strom, Gas, Wasser, Bäder, Elektromobilität,
Photovoltaik, Telekommunikation

Natuvion Leistung: Conversion auf HCM für SAP S/4 HANA

Challenge
  • An incorrectly configured fiscal year posed risks to financial reporting and compliance.

  • Missing document splitting limited transparency and financial control.

  • Historical financial data required correction and reclassification.

  • All changes had to be implemented without disrupting ongoing operations.

Solution
  • Leveraged the Natuvion Data Conversion Suite (DCS) to execute the data transformation.

  • Adjusted and transformed more than 400 SAP database tables.

  • Activated SAP Document Splitting retrospectively in the productive environment.

  • Conducted extensive testing and validation prior to go-live.

Result
  • Established a consistent and audit-ready financial data foundation.

  • Improved transparency for financial reporting and business management.

  • Fully aligned reporting structures with business requirements.

  • Delivered on time, within budget, and without operational disruption.

Industries_im_Fokus_Hand_links_V06

Objective

GM3 sought to align its SAP S/4HANA landscape with the requirements of a globally operating mining company. The objective was to establish a robust, compliant, and audit-ready foundation for financial processes, reporting structures, and governance requirements.

Following the initial SAP S/4HANA go-live, GM3 encountered significant challenges. An incorrect fiscal year configuration and the absence of document splitting negatively impacted financial processes, reporting accuracy, and compliance. Together with Customer360, Natuvion developed a transformation program to remediate the productive SAP S/4HANA environment and ensure its long-term operational and reporting readiness.

 

About_us_Icon_Branchen

Industry:

Mining

Key service:

SAP S/4HANA Post-Go-Live Remediation & financial data transformation

Icon_Kalender

Project approach:

S/4HANA transformation with the Natuvion Data Conversion Suite

Project duration:

-

SVK_Icon_Benefit_Career_Notebook

Source system:

SAP S/4HANA

Target system:

SAP S/4HANA

Icon_Partner

Transformation partner:

Customer360

Detailed project overview

Realigning SAP S/4HANA after go-live

Following the SAP S/4HANA implementation, two major configuration issues were identified that had a significant impact on reporting, financial operations, and compliance.

First, the fiscal year was configured from July to June, while GM3’s reporting requirements were based on a calendar year running from January to December. Correcting this structure within a productive SAP S/4HANA environment required modifications across hundreds of interdependent database tables, as well as the reorganization and relabeling of historical financial data.

Second, SAP Document Splitting had not been activated during the implementation. As a result, the organization lacked the transparency required for financial reporting by site, profit center, and business unit. Retrospectively enabling this core SAP Finance capability is considered one of the most complex corrective measures in a live SAP environment.

Transforming financial data and system structures

Natuvion and Customer360 designed and executed a structured transformation program to address both challenges. The project was delivered entirely within the productive SAP S/4HANA environment without interrupting ongoing mining operations.

To realign the fiscal year structure, Natuvion deployed the Natuvion Data Conversion Suite (DCS). Through automated analysis, migration, and transformation processes, more than 400 SAP database tables were adjusted and historical financial data was reclassified to support the new reporting structure.

In parallel, Customer360 activated SAP Document Splitting. Existing financial postings were reviewed, corrected, and aligned with the revised reporting requirements. Comprehensive end-to-end testing ensured that all financial processes functioned correctly following the transformation.

Consistent financial data for reporting and compliance

By combining the fiscal year realignment with the activation of document splitting, GM3 established a consistent and audit-ready financial data foundation. Historical financial data was successfully harmonized with the new structure, enabling the company to meet its reporting and governance requirements with confidence.

The transformation was completed on schedule and within budget. Throughout the project, both the productive SAP S/4HANA environment and ongoing mining operations remained fully stable, with no unplanned business disruption.

EN_SuccessStory_26_N066_APJ_GM3_MockUp_1314x1283_260529 Kopie

Download the full success story as a PDF

These types of transformations are rarely straightforward. They demand deep technical expertise, careful planning, and a clear understanding of financial integrity within S/4HANA. This was a true team effort, with everyone aligned to bring the solution home.
Customer360
Delivery Partner

Related success stories

Successful company code merger at Stockmeier

STOCKMEIER uses Natuvion DCS to successfully merge three company codes.

Read more

How Energiedienst successfully transitioned to SAP S/4HANA

Read our success story with Energiedienst to find out what a successful transformation to SAP S/4HANA can look like.

Read more

Smart SAP system carve-out at Duopharma

Successful demerger in an ambitious time schedule: Learn more about the carve-out success factors at Duopharma in our success story.

Read more

Successful migration from powercloud to SAP

SENEC trusts Natuvion to migrate its subledger accounting from powercloud to SAP.

Read more

Successful outsourcing of district heating from Vattenfall

Read in our success story with Vattenfall all the details of an effective and successful carve-out.

Read more

Key to success: professional project management

EnBW ODR relies on Natuvion when it comes to managing its SAP S/4HANA platform migration. Read all the details in our success story.

Read more

Aging SAP systems brought up to date prior to divestment

Lanco achieves two complex transformation projects with Natuvion – on time and on budget.

Read more

Successful Carve-in to SAP S/4HANA

Supported by Natuvion, AMAG successfully migrates acquired company assets into running SAP S/4HANA system.

Read more

Carve-out with seamless cutover ensures continuous business operations

Learn in our success story how efficiency & close collaboration enabled Natuvion to complete a company carve-out at Construction Forms faster than planned.

Read more

Get in touch with our SAP S/4HANA expert

Rainer Euchermann

Rainer Euchermann

Local Lead Presales

Get in touch

Animation

Your contact details

Return to top