MIRKO

Consolidating 14 ERP Instances Into One S/4HANA Core Across Six Countries

A European third-party logistics group ran 14 ERP instances inherited from acquisitions. We consolidated them into one S/4HANA core with an event-driven integration layer and an AI-assisted data migration, cutting the order-to-cash cycle by 38%.

Industry
Logistics
Country
European 3PL Group
Team Size
14
Services
Custom Software Development, IT Consulting, AI Integration
Technologies
SAP S/4HANA, Azure, Kafka, .NET, Python, Claude
Consolidating 14 ERP Instances Into One S/4HANA Core Across Six Countries

Overview

About The Project

After a decade of acquisitions the group operated 14 ERP instances in six countries, each with its own master data, pricing logic and reporting. Month-end closing took three weeks and cross-border orders were re-keyed by hand.

Over twelve months we led the consolidation onto a single S/4HANA core, built the integration layer that connects warehouses, transport management and customer portals, and used LLM-assisted mapping to migrate and reconcile master data from the legacy systems.

The Challenge

Fourteen TruthsAbout Every Customer

The same customer existed up to fourteen times with different addresses, terms and credit limits. Warehouse and transport systems depended on local ERP quirks nobody had documented.

The business could not stop. Every country had to keep shipping during the migration, and finance needed consolidated reporting from month one of the new core.

Fourteen Truths About Every Customer

Our Solution

Strangler MigrationWith An Event Backbone

We introduced a Kafka event backbone on Azure first, so warehouses, TMS and portals talked to a stable contract instead of to a specific ERP. Countries then moved to the S/4HANA core one at a time, with the legacy instance kept in read-only mode for reconciliation.

Master data was the hardest part. An LLM-assisted mapping pipeline proposed matches and normalisations for customers, materials and price conditions; data stewards approved them in a review tool, and every decision was logged. The approach reduced manual reconciliation effort by roughly two thirds.

Strangler Migration With An Event Backbone

Key Features

What WeDelivered

The Impact

Results ThatMatter

One core, one customer record, one set of numbers.

-38%

Order-to-cash cycle

14 → 1

ERP instances

6

Countries migrated

12 months

Programme duration