LeverX provides UK organisations with end-to-end SAP S/4HANA migration expertise, from migration assessment and strategy to data migration, custom-code remediation, system transformation, testing, cutover, and post-go-live optimisation.
As organisations across the UK modernise their enterprise technology landscapes, the transition from SAP ECC to SAP S/4HANA is becoming a strategic business priority. Successful migration requires more than technical system conversion. Organisations need to assess their existing SAP landscape, select the right transformation approach, manage data and custom code, modernise integrations, and minimise disruption to business operations.
LeverX is an SAP Gold Partner and SAP Global Strategic Supplier. With more than 20 years of collaboration with SAP, more than 2,200 experts, and more than 1,500 delivered projects, LeverX combines SAP consulting, engineering, data, integration, and automation capabilities to support complex S/4HANA transformation programmes.
As an SAP S/4HANA Migration Partner, LeverX supports organisations throughout the migration lifecycle, helping them assess their current SAP landscape, define the transformation approach, migrate and validate business data, remediate custom code, test the target environment, manage cutover, and optimise the system after go-live.
SAP S/4HANA Migration Partner for the Full Transformation Lifecycle
Choosing an SAP S/4HANA migration partner is not only about selecting a technical implementation provider. Organisations need a partner capable of understanding the existing SAP landscape, making strategic migration decisions, managing transformation risks, and supporting the business through go-live and beyond.
LeverX supports the full migration lifecycle:
- Migration assessment and strategy
- Brownfield system conversion
- Greenfield implementation
- Selective Data Transition
- SAP landscape transformation
- Data migration and management
- Custom-code analysis and remediation
- SAP Clean Core initiatives
- Integration
- Testing and validation
- Cutover and go-live
- Post-go-live support and optimisation
This end-to-end approach enables organisations to address technical, data, process, and integration requirements within a coordinated S/4HANA migration programme.
SAP S/4HANA Migration Assessment
A successful S/4HANA migration starts with understanding the environment being transformed.
LeverX provides SAP S/4HANA migration assessments to help organisations evaluate their current SAP landscape, identify transformation requirements, and define a migration roadmap.
The assessment can cover:
SAP Landscape Readiness
LeverX analyses the existing SAP environment, including system architecture, SAP versions and components, infrastructure, dependencies, interfaces, and technical prerequisites for the target S/4HANA environment. The review helps identify legacy components, architectural constraints, and areas that may require remediation before or during migration.
The assessment can also consider the organisation's broader SAP landscape to understand how the ERP system interacts with surrounding applications, platforms, and business-critical processes.
Custom Code and Technical Debt
Existing custom developments are reviewed to determine what should be retained, adapted, replaced, redesigned, or retired as part of the S/4HANA transformation.
LeverX can analyse custom ABAP developments and identify functionality that may be affected by the move to S/4HANA. The assessment helps organisations distinguish between business-critical customisations and legacy developments that can potentially be simplified or removed, supporting a more maintainable target environment.
Data Readiness
LeverX evaluates data quality, volumes, structures, dependencies, and migration requirements to identify where data cleansing, transformation, archiving, or migration activities may be required
The assessment can help organisations determine which data needs to be migrated to S/4HANA, what can be archived, and where data quality issues may affect the migration. Particular attention can be given to master data, transactional data, historical records, and dependencies between business objects.
Business Processes
Current business processes are reviewed to identify opportunities for standardisation, optimisation, and redesign within S/4HANA.
The assessment considers how existing processes are supported by SAP today and where the organisation may be relying on custom functionality or workarounds. This helps identify processes that can move closer to standard S/4HANA capabilities and areas where additional configuration, extensions, or process redesign may be required.
Integration Landscape
Existing SAP and non-SAP integrations are analysed to identify dependencies and determine what needs to be adapted for the target architecture.
The review can cover interfaces between SAP and external applications, data flows, integration technologies, and dependencies on legacy systems. This helps identify integration changes that need to be considered as part of the migration scope and target architecture.
Cloud Readiness
For organisations moving to SAP S/4HANA Cloud, the assessment can also consider the technical and architectural implications of the target cloud environment.
LeverX evaluates the existing landscape against the requirements of the planned cloud architecture and identifies areas that may require changes to integrations, extensions, custom developments, infrastructure, or operating models.
Migration Approach
LeverX helps organisations compare Brownfield, Greenfield, Selective Data Transition, and broader landscape transformation approaches based on their business, technical, data, and operational requirements.
The assessment considers factors such as the complexity of the existing SAP environment, the amount of customisation, data requirements, process standardisation goals, integration dependencies, and the organisation's transformation timeline. This provides a basis for selecting an approach that aligns the technical migration with broader business objectives.
Migration Scope and Priorities
The assessment can be used to define the main workstreams required for the S/4HANA transformation and establish priorities for the migration programme.
Depending on the existing environment, these may include system conversion, custom-code remediation, data migration, integration adaptation, process redesign, testing, infrastructure changes, security, and cutover planning. Identifying these requirements early helps organisations build a more realistic migration scope and implementation plan.
Migration Risks and Dependencies
LeverX identifies technical, data, process, and integration dependencies that could affect the migration. This can include dependencies between custom developments and standard SAP functionality, legacy interfaces, data-quality issues, business-critical processes, and systems that need to remain operational during the transition.
Understanding these dependencies at the assessment stage helps organisations identify potential risks early and incorporate appropriate remediation activities into the migration roadmap.
Assessment Deliverables
The assessment results in a structured view of the current SAP environment and the work required to move towards S/4HANA. Depending on the scope, deliverables can include an assessment of the existing landscape, custom-code and data findings, integration considerations, migration risks, recommended migration approach, and a high-level roadmap for the transformation.
This gives business and IT stakeholders a common basis for planning the migration, estimating the required effort, and prioritising activities before implementation begins.
Evaluate your SAP landscape, identify migration risks, and get a practical roadmap for your S/4HANA transformation.
Brownfield SAP S/4HANA Migration
For organisations with established SAP ECC environments, a Brownfield approach provides a path to SAP S/4HANA while retaining relevant business processes, configuration, and data.
As an SAP S/4HANA Migration Partner, LeverX supports global Brownfield migration programmes across:
- SAP readiness assessment and system preparation
- SAP system conversion and S/4HANA migration
- Custom-code analysis, remediation, and adaptation
- Data migration, cleansing, and archiving
- Business process analysis and adaptation
- Integration assessment and updates
- SAP Fiori and user-experience enablement
- Security, roles, and authorisations
- Testing and validation
- Infrastructure and cloud transformation
- Cutover planning and execution
- Post-go-live support and optimisation
LeverX has supported SAP S/4HANA Brownfield migrations across complex, globally distributed SAP landscapes, helping organisations modernise established environments while preserving critical business processes, data, and system capabilities.
Featured Brownfield Migration Case
LeverX supported a global manufacturer with a Brownfield migration from SAP ECC to SAP S/4HANA. The programme covered Finance, Production and Quality, Materials Management, Sales, HR, master data, SAP Basis, and custom functionality.
The project involved migrating the full set of business data to S/4HANA and required a tightly controlled three-day cutover window to minimise disruption to operations and deliveries. Following the migration, LeverX continued to support the customer with SAP configuration, enhancements, and application support.
Read the full SAP S/4HANA migration case study →
Greenfield SAP S/4HANA Transformation
A Greenfield implementation enables organisations to establish a new SAP S/4HANA environment and redesign business processes around the target platform, rather than carrying forward legacy system structures and customisations.
LeverX supports Greenfield programmes across:
- Business process analysis and redesign
- SAP Best Practices adoption
- Solution architecture and design
- SAP S/4HANA implementation
- Data migration and master data management
- Integration
- Custom extensions and SAP Clean Core
- Testing and validation
- Cutover and go-live
- Post-go-live support and optimisation
A Greenfield approach can be relevant for organisations looking to move away from legacy process complexity, reduce unnecessary customisation, standardise business processes, and establish a new SAP foundation aligned with their future operating model.
Selective Data Transition
Selective Data Transition provides an alternative for organisations that want to transform their SAP environment without fully converting the existing system or starting completely from scratch. It allows organisations to selectively move data, processes, and system elements to a new SAP S/4HANA environment while redesigning the parts of the landscape that require change.
LeverX supports Selective Data Transition programmes across:
- Selective data migration and historical data transfer
- Business unit and legal-entity migration
- SAP landscape consolidation
- Business process redesign
- System and data transformation
- Acquisitions and divestitures
- Custom-code and legacy complexity reduction
- Integration adaptation
- Testing and validation
- Cutover and go-live
The approach enables organisations to determine which elements of their existing SAP environment should move to the new platform, which should be redesigned or consolidated, and which can remain outside the target S/4HANA environment.
Selective Data Transition can be particularly relevant for organisations with complex SAP landscapes, multiple business units or legal entities, significant historical data, or transformation requirements driven by acquisitions, divestitures, or business restructuring.
SAP Landscape Transformation
Large enterprises may operate multiple SAP systems resulting from acquisitions, regional operations, organisational changes, or years of independent system development. Transforming such an environment requires a coordinated strategy for systems, data, integrations, and business processes across the wider SAP landscape.
LeverX supports broader SAP landscape transformation programmes across:
- SAP system consolidation
- Selective data migration
- Business process harmonisation
- SAP S/4HANA migration
- Target landscape and architecture design
- Integration modernisation
- Organisational transformation
- System decommissioning and legacy reduction
- Migration planning and sequencing
For complex landscapes, LeverX evaluates the relationships between SAP systems, business units, data, integrations, and processes to determine how the environment should evolve. This can include consolidating systems, separating or combining business units, migrating selected data, modernising integrations, and establishing a target S/4HANA landscape.
A coordinated landscape transformation approach helps organisations manage dependencies across multiple systems while aligning the migration with broader business and organisational changes.
Data Migration as a Core SAP S/4HANA Migration Capability
Data migration is a critical part of any SAP S/4HANA transformation, particularly when organisations need to move large volumes of business data from complex SAP and non-SAP environments while maintaining data quality and integrity.
LeverX provides data management and migration capabilities covering the full data migration lifecycle, including extraction, profiling, cleansing, transformation, validation, loading, and reconciliation.
LeverX's Data Management Platform is designed to support complex SAP data migration scenarios across legacy and modern enterprise environments.
The LeverX Data Management Platform, combined with SAP Migration Cockpit, supports migration scenarios described in the SAP AppHaus use case Facilitating Migration from Legacy ERP to SAP S/4HANA - LeverX. The solution supports:
- Data extraction from SAP and non-SAP systems
- Data validation and quality checks
- Data transformation and mapping
- Data loading into SAP S/4HANA Cloud
- Configurable plugins and templates
- On-premise and cloud migration scenarios
These capabilities form part of LeverX's broader S/4HANA migration approach, addressing data quality, transformation, and reconciliation alongside system, process, and integration requirements.
AI-Powered SAP S/4HANA Migration
AI and automation can help organisations reduce manual work in data-intensive SAP S/4HANA migration activities, particularly when large volumes of data need to be mapped, transformed, validated, and reconciled across source and target systems.
LeverX applies AI and automation to selected migration activities through the LeverX Data Management Platform. Working with SAP AI technologies and SAP Business Technology Platform, the platform can support automated and assisted processes across the data migration lifecycle.
The capabilities can include:
- Intelligent data mapping - supporting the mapping of source data structures to target SAP S/4HANA structures.
- Data validation - identifying data quality issues and validating migrated data against defined rules and requirements.
- Data reconciliation - comparing source and target data to identify discrepancies and accelerate reconciliation activities.
- Error handling - helping identify migration errors and support the resolution process.
- Migration automation - reducing repetitive manual activities across data preparation and migration workflows.
LeverX's AI-powered migration solution was recognised in the SAP Innovation Awards 2025 under the title “Agentic AI: Revolutionizing SAP S/4HANA Data Migration with LeverX's Data Management Platform & SAP Cloud”.
In this solution, LeverX combined its Data Management Platform with SAP AI technologies and SAP Cloud capabilities to automate and accelerate data migration activities. The solution delivered reported results of:
- 60% reduction in manual effort
- 65% faster data reconciliation
- 50% lower migration cost
These results demonstrate how LeverX applies AI and automation to address time-consuming data migration activities within broader SAP S/4HANA transformation programmes.
AI-powered capabilities can be integrated into the wider migration lifecycle alongside data migration, custom-code remediation, integration, testing, cutover, and post-go-live activities.
Custom-Code Remediation and SAP Clean Core
An SAP S/4HANA migration gives organisations an opportunity to review the custom code accumulated in their SAP ECC environment and decide what should move to the new platform and what should be changed, replaced, or retired.
LeverX analyses custom developments and custom objects to determine the most appropriate path for each piece of functionality:
- Retain and adapt - modify existing custom code to work with SAP S/4HANA
- Replace with standard SAP functionality - remove custom developments where equivalent standard capabilities are available
- Redesign as an extension - rebuild functionality using a more sustainable extension approach
- Move outside the SAP core - decouple functionality that does not need to run within the core ERP
- Retire - remove obsolete or redundant custom developments
This approach supports SAP Clean Core principles by reducing unnecessary customisation and limiting the amount of legacy complexity carried into the S/4HANA environment.
As part of the broader migration programme, LeverX provides custom-code analysis, remediation, adaptation, and optimisation, helping organisations prepare their existing SAP developments for the target S/4HANA architecture.
Integration, Testing, and Cutover
An SAP S/4HANA migration can affect integrations, business processes, data flows, and dependent systems across the wider enterprise landscape. LeverX helps organisations assess these dependencies and prepare the surrounding IT environment for the transition to S/4HANA.
LeverX supports SAP and non-SAP integration throughout the migration, including integration assessment, design, development, adaptation, testing, and validation. The team also coordinates the testing and cutover activities required to move the new environment into production.
Key capabilities include:
- Integration assessment and modernisation
- Migration and technical testing
- End-to-end business-process testing
- SAP and non-SAP integration testing
- Data validation and reconciliation
- Cutover planning and execution
- Production migration
- Go-live support
- Post-go-live stabilisation
By bringing integration, testing, and cutover activities together within the migration programme, LeverX helps organisations manage dependencies, identify issues before go-live, and minimise disruption to business operations.
LeverX SAP S/4HANA Migration Case Studies
LeverX’s SAP S/4HANA migration experience spans manufacturing, automotive, chemicals, consumer goods, retail, telecommunications, utilities, energy and natural resources, life sciences, pharmaceuticals, financial services, banking, insurance, transportation and logistics, and industrial distribution. Our experience covers established SAP ECC environments as well as complex enterprise landscapes, supporting Brownfield migrations, system transformations, and broader SAP modernisation initiatives.
SAP S/4HANA Migration for a Global Manufacturer
LeverX supported a global manufacturer of optical fibers, cables, and laser-delivery systems with a Brownfield migration from SAP ECC to SAP S/4HANA. The project covered Finance, Production and Quality, Materials Management, Sales, HR, master data, SAP Basis, and custom-developed functionality.
Following the SAP Activate methodology, we coordinated the migration around a tightly controlled three-day cutover window to help minimize disruption to manufacturing operations and deliveries. We completed the business-data migration within the planned timeline and continued supporting the client with SAP configuration, enhancements, and application support.
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SAP S/4HANA Migration for Eurasia Group
LeverX supported Eurasia Group in its transition from SAP ECC to SAP S/4HANA, helping modernize its SAP landscape and prepare for further transformation.
The program followed the SAP Activate methodology and covered system analysis, custom-code assessment, business-data migration, integration testing, user training, and production migration. The transformation restored system upgradeability, enabled access to new S/4HANA functionality, and prepared the organization for the subsequent implementation of SAP EWM.
Read the Eurasia Group case study →
SAP S/4HANA Migration for a Global Telecommunications Company
Following an acquisition, we supported a global telecommunications company in migrating from SAP ECC to SAP S/4HANA while transforming its engineering-change processes. The project brought ERP modernization together with engineering and product-data requirements, including SAP ECTR and related workflow capabilities.
We delivered the S/4HANA transformation in ten months and implemented the required engineering-change workflows within two months. The project helped unify the acquired organization's SAP landscape and establish a foundation for further process and product-data transformation.
Read the telecommunications case study →
SAP S/4HANA Migration for a Baltic Heat-Energy Provider - AS “RĪGAS SILTUMS”
LeverX supported AS “RĪGAS SILTUMS”, a Baltic heat-energy provider, with a Brownfield transformation from SAP ECC to SAP S/4HANA.
The program included SAP IS-U and focused on migrating the existing SAP environment while retaining historical data, configuration, and established business processes. The scope also covered Finance, Controlling, Materials Management, Sales and Distribution, Plant Maintenance, HCM/Payroll, SAP Fiori, and SAP BW/4HANA.
Read the AS “RĪGAS SILTUMS” case study →
SAP ECC Modernisation for a Manufacturing Company
LeverX helped a large manufacturing company modernize its SAP ECC environment and prepare for S/4HANA by moving legacy custom logic toward a Clean Core architecture with SAP BTP.
The work addressed technical debt, custom ABAP, extension architecture, and integration. According to the reported project results, the transformation reduced total cost of ownership (TCO) by 40% and custom development and support costs by 30%, while helping establish a more upgrade-ready SAP landscape.
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SAP S/4HANA Migration for a Global Energy Management Company
Using our Migravion migration platform, we helped a global energy management company migrate from a homegrown ERP system that had been in use for more than 30 years to SAP S/4HANA. The project included complex open sales orders across the United States and Canada.
The scope covered more than 100 migration scenarios, complex data profiling and transformation, downstream system dependencies, data validation and reconciliation, and a tightly constrained production downtime window.
Experience That Supports Complex S/4HANA Transformations
Together, these projects demonstrate LeverX's experience across different SAP S/4HANA migration scenarios, industries and levels of complexity - from Brownfield ECC conversion and custom-code remediation to business-data migration, engineering-process transformation and industry-specific SAP functionality.
This experience enables LeverX to support organisations not only with the technical migration to SAP S/4HANA, but also with the broader transformation required to address legacy complexity, business continuity, data quality, integrations and evolving business requirements.
LeverX as an SAP Partner
LeverX is an SAP Gold Partner and SAP Global Strategic Supplier, with more than 20 years of collaboration with SAP. The company brings together 2,200+ experts and has delivered 1,500+ projects, combining global SAP expertise with dedicated capabilities for the UK market.
LeverX’s SAP expertise spans:
- SAP S/4HANA and SAP Cloud ERP
- SAP Business Technology Platform
- Application Development and Automation
- Data and Database Management
- SAP Integration
- Procurement and Sourcing
- Supply Chain and Logistics
- Product Lifecycle Management
- Core HR and SAP SuccessFactors
- Business Network
This breadth of SAP expertise enables LeverX to address S/4HANA migration as part of a broader enterprise transformation, connecting ERP modernisation with data, integration, application development, business processes, and ongoing optimisation. LeverX supports UK organisations across the full SAP transformation lifecycle, from assessment and strategy to migration, integration, implementation, and post-go-live optimisation.
SAP S/4HANA Migration Partner for UK Organisations
LeverX established a local UK presence in March 2026, strengthening its ability to support UK organisations with SAP transformation programmes.
For UK enterprises, an S/4HANA migration must often address local financial, tax, reporting, and compliance requirements alongside broader business and technology objectives. Depending on the organisation and its SAP landscape, these may include:
- HMRC-related integrations
- Making Tax Digital
- Statutory reporting
- Real Time Information (RTI)
- Construction Industry Scheme (CIS)
- UK GDPR
- Banking and payment integrations
- EDI
- Multi-entity and multi-country reporting
LeverX incorporates relevant UK requirements into migration assessment, data, integration, testing, and other workstreams based on the organisation's specific landscape and business needs.
For UK organisations operating across multiple markets, LeverX combines local UK delivery with global SAP expertise to support complex, multi-country S/4HANA transformation programmes.
Partner with LeverX for Your SAP S/4HANA Migration
As an SAP S/4HANA Migration Partner, LeverX provides end-to-end support across the migration lifecycle - from strategy and assessment through transformation, go-live, and ongoing optimisation.
Our capabilities include:
- Migration Strategy - assess your SAP landscape, identify transformation requirements, and define the right migration approach.
- System Transformation - execute Brownfield, Greenfield, Selective Data Transition, and broader SAP landscape transformation programmes.
- Data Management - migrate, transform, validate, and reconcile SAP and non-SAP data using dedicated migration technology.
- Custom-Code Remediation - analyse, remediate, redesign, or retire legacy developments to support SAP Clean Core objectives.
- Integration - assess and modernise SAP and non-SAP integrations across the enterprise landscape.
- Testing and Cutover - manage testing, validation, cutover planning, production migration, and go-live activities.
- AI and Automation - apply AI-powered technologies to automate selected migration and data-management activities.
- Post-Go-Live Support - stabilise the new S/4HANA environment and provide ongoing optimisation and application support.
With SAP consulting, engineering, data, integration, and automation capabilities under one delivery model, LeverX helps organisations manage the technical and business complexity of S/4HANA migration while keeping the transformation aligned with their wider objectives.
