SAP S/4HANA Upgrade Services

Name: leverX Company
Brand: LeverX
Rating: 4.9 (114 reviews)

We deliver SAP S/4HANA upgrades that move your system from basic support compliance to a platform ready for analytics, ESG reporting, and AI-driven processes.

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LeverX is a certified partner of the SAP Center of Expertise. This accreditation ensures our unwavering commitment to upholding SAP's highest standards. Our mission is to deliver excellence, providing unparalleled support, and facilitating the seamless integration of SAP solutions into your business framework.

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LeverX — Your SAP Implementation Partner for S/4HANA Upgrade

LeverX is a global system integrator and SAP Gold Partner with more than twenty years of experience delivering SAP system upgrades and ERP modernisation programmes. Our teams work with organisations across manufacturing, retail, logistics, and healthcare. We support upgrade projects in the UK with a focus on system stability, regulatory alignment, and continuity of business operations.

We approach SAP S/4HANA upgrades at three levels. A technical upgrade keeps the system on a supported release and resolves compatibility issues. A functional upgrade activates new capabilities such as embedded analytics or updated financial processes. A transformation upgrade restructures the system architecture, including migration of custom developments to SAP BTP. This approach reduces dependency on core modifications and prepares the system for future updates and AI-based tools such as Joule.

1,500+

successful projects

offices, 10+ countries

2,200+

employees

500+

certified experts

Many SAP S/4HANA systems run on versions that already include newer functions which remain inactive. Finance teams continue exporting data for reporting. ESG data is collected outside the system. Custom code grows because standard functions are not reviewed after each release. The system works, but it does not reflect the current SAP roadmap.

This gap increases over time. Each missed upgrade adds more effort to maintain compatibility and test changes. At the same time, regulatory and reporting requirements in the UK continue to change. An upgrade creates a controlled point to address both. It allows you to activate standard SAP features, review existing extensions, and move selected developments to SAP BTP using the clean core approach. This reduces dependency on custom code and prepares the system for SAP AI services.

For organisations operating in the UK, the upgrade is driven by specific requirements:

HMRC reporting standards. Digital tax reporting requires structured and consistent financial data stored directly in SAP.
UK SOX alignment. Financial processes must support audit trails, role-based access, and documented controls.
Net Zero and ESG reporting. SAP provides tools to capture emissions and sustainability data within core processes.
Embedded analytics in S/4HANA. Built-in analytical apps reduce the need to export data to external reporting tools.
Readiness for SAP AI services. Clean core architecture and SAP BTP extensions are required to use tools such as Joule.

Unlock the true power of your human capital with bespoke SAP SuccessFactors consulting. LeverX moves beyond standard implementation to deliver a comprehensive HR digital transformation, evolving transactional workflows into high-impact competitive advantages.

We specialise in architecting the SuccessFactors HXM suite to meet the specific complexities of the UK landscape through:

Strategic AI Orchestration: Implementing an AI-ready data foundation for predictive hiring, autonomous talent matching, and intelligent workforce sensing.
UK-Centric Compliance: Engineering precision into your operations with HMRC-compliant payroll and native frameworks for local regulatory reporting.
Clean Core Architecture: Leveraging SAP BTP to build flexible, "side-by-side" extensions that keep your HR core agile and upgrade-ready.
Performance ROI: Transforming the employee experience into a measurable business outcome by aligning individual goals with global corporate strategy.
Future-Proof Scalability: Designing elastic HXM environments that adapt to market volatility and support rapid business expansion.

Collaborate with SAP SuccessFactors strategists to ensure your organisation remains resilient and competitive in an increasingly complex corporate landscape.

HMRC and Making Tax Digital (MTD) readiness

S/4HANA supports structured VAT and tax data required for MTD. This allows direct data exchange with HMRC systems and reduces manual reconciliation.

Compliance with UK operational resilience requirements

Newer S/4HANA releases include improved controls for access management, monitoring, and system logging. These functions support continuity planning and audit requirements for critical operations.

ESG and Net Zero reporting

S/4HANA provides tools to capture emissions and sustainability data within business processes. This supports reporting aligned with UK environmental targets without separate systems.

Readiness for AI adoption

Recent S/4HANA releases support integration with SAP AI tools such as Joule. This allows automation of tasks like document processing and supports data analysis for demand planning and supply chain decisions.

Reduced cost of system maintenance

A clean core approach limits custom code and keeps extensions on SAP BTP. This reduces the effort required for testing, upgrades, and ongoing support.

Faster reporting with embedded analytics

Built-in analytical apps allow users to access operational and financial data in real time. This removes the need for data extraction into external reporting tools.

Self-Service Management

SAP Successfactors

HMRC & GDPR Compliance

Precision Payroll Excellence

Strategic Reward & Compensation

Retention & Engagement

Time Management

Unified Global Employee Records

Self-Service Management
HMRC & GDPR Compliance
Precision Payroll Excellence
Workplace Well-being
Strategic Reward & Compensation
Retention & Engagement
Time Management
Unified Global Employee Records

Workplace Well-being

Strategic upgrade advisory

We start by analysing the current SAP landscape, including ECC or existing S/4HANA systems. SAP Readiness Check and system analysis tools help identify technical constraints and upgrade options. We then define a target operating model aligned with UK governance and compliance requirements. This includes decisions on technical upgrade versus transformation approach. We also assess migration strategies such as Brownfield or selective data transition to preserve relevant historical data while removing redundant processes. The outcome is a structured roadmap with clear scope, cost logic, and expected system impact.

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Technical upgrade and functional modernisation

We manage the technical conversion of the SAP system to the latest S/4HANA release. This includes database migration, code adaptation, and correction of incompatible objects. We also update core business modules such as Finance, Controlling, Procurement, and Sales to reflect current SAP standards. User experience is modernised through SAP Fiori, replacing legacy SAP GUI screens with role-based interfaces. Integration with UK banking systems is updated using SAP Multi-Bank Connectivity to support standardised payment and reconciliation flows.

SAP BTP development and Clean Core design

We move custom business logic out of the SAP core into SAP Business Technology Platform. This reduces system complexity and limits the impact of future upgrades on custom developments. Legacy ABAP code is refactored using modern development standards such as ABAP Cloud and CAP. We also build cloud applications and APIs for external systems, including supplier portals and internal service tools. Integration is handled through SAP Integration Suite to connect S/4HANA with CRM systems, external services, and regulatory platforms.

Data readiness and AI enablement

We prepare business data for migration into the new system. This includes cleansing duplicates, standardising master data, and aligning historical records. The resulting data structure is configured for SAP Joule and other AI-based functions. This enables forecasting for finance and supply chain processes based on consistent transactional data. We also ensure audit trails are preserved for HMRC requirements. For organisations tracking sustainability metrics, we prepare data foundations for carbon reporting within SAP sustainability tools.

UK compliance and security configuration

We update SAP configurations to align with UK regulatory requirements. This includes Making Tax Digital workflows and Document and Reporting Compliance settings for tax reporting. We also review internal controls, including segregation of duties and access rights, to support UK SOX-style governance requirements. Sanctions screening is integrated where required for counterparty validation. Security configurations are updated with current encryption and access control standards to reduce exposure to known vulnerabilities.

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Cutover support and continuous optimisation

We manage system transition using structured cutover planning and downtime reduction techniques where applicable. This ensures controlled go-live with minimal disruption to business operations. After go-live, we provide hypercare support during the stabilisation phase. Ongoing support includes monitoring system performance, resolving operational issues, and reviewing new SAP release features. We also track process bottlenecks and adjust system configuration to reduce unnecessary processing effort in finance and logistics operations.

Our Approach to SAP S/4HANA Upgrade

Every SAP S/4HANA upgrade starts from a different baseline. Some systems run on older S/4 releases. Others still operate on ECC with extensive custom code. In the UK, projects also need to address HMRC reporting, audit controls, and data handling standards.

We follow a structured approach to control technical risk and keep the system aligned with business and regulatory requirements. Here is how we structure SAP S/4HANA upgrade projects:

System assessment and compliance review

System landscape analysis: Review SAP ECC or S/4HANA environment, including modules, custom code, and integrations.
SAP Readiness Check execution: Identify incompatible objects, add-ons, and required technical adjustments.
Process and data review: Analyse finance, procurement, and logistics processes for inconsistencies or outdated logic.
UK compliance screening: Check VAT handling, HMRC reporting structures, and data processing against UK GDPR expectations.
Risk mapping: Identify upgrade blockers related to code, data quality, or external integrations.

Upgrade planning and scenario definition

Upgrade path selection: Define Brownfield, Greenfield, or selective data transition based on system condition.
Scope definition: Determine which modules, processes, and data sets are included in the upgrade.
Custom code strategy: Decide which developments will be retained, replaced, or removed.
Timeline and dependency planning: Build a phased schedule with clear milestones and validation points.
Testing and compliance planning: Define testing scope for financial reporting, integrations, and audit controls.

Architecture alignment and system preparation

Clean Core preparation: Separate standard SAP processes from custom logic to reduce upgrade complexity.
Infrastructure validation: Ensure database, hosting, and network layers support the target S/4HANA release.
Security and access design: Align roles and authorisations with audit and control requirements.
Integration readiness: Prepare interfaces with banking systems, HMRC APIs, and external platforms.
Data preparation: Clean and harmonise master and transactional data before migration.

Upgrade execution and system validation

Technical conversion: Perform system upgrade, including database migration and code adaptation.
Functional validation: Test financial postings, supply chain processes, and reporting outputs.
Integration testing: Validate data exchange with external systems and services.
User acceptance testing: Confirm system behaviour with business users across key processes.
Defect resolution: Fix identified issues before production deployment.

Cutover, go-live, and stabilisation

Cutover planning: Define sequence for data transfer, system switch, and user access activation.
Production deployment: Move upgraded system into live environment with controlled downtime.
Post-go-live monitoring: Track system performance, transaction processing, and error logs.
Compliance verification: Confirm reporting accuracy and audit trail consistency after go-live.
Support and optimisation: Resolve issues and adjust configurations based on real usage patterns.

Why Choose LeverX for SAP S/4HANA Upgrades

Proven delivery experience

LeverX has delivered SAP projects for more than twenty years across multiple industries. Our teams have completed over 1,500 projects for more than 900 clients, including global enterprises. This experience allows us to plan and execute upgrades with a clear understanding of system dependencies and risks.

Direct involvement in SAP development

LeverX works with SAP on product development and improvement. Our engineers contribute to SAP solutions and understand how new releases are structured. This allows us to apply new features correctly and avoid common implementation issues.

Clean core approach in practice

We structure upgrades to reduce custom code inside the S/4HANA core. Extensions are moved to SAP BTP using side-by-side development. This keeps the core system stable and simplifies future updates and testing cycles.

Data preparation for reliable operations

We treat data migration as a controlled process. Our teams clean and standardise master and transactional data before it enters the upgraded system. This supports accurate reporting and stable operation after go-live.

Industry and UK-specific expertise

Our specialists have experience across industries such as manufacturing, retail, and logistics. We also configure systems in line with UK requirements, including HMRC reporting, UK GAAP, and local payroll rules. This reduces the need for post-upgrade adjustments.

Continuous support and delivery capacity

LeverX provides support across time zones with teams available around the clock. We manage upgrades, post-go-live support, and further system changes within one delivery model. This ensures continuity and consistent system performance.

WHAT OUR CUSTOMERS SAY

“LeverX: A Pragmatic System Integrator with Extensive SuccessFactors and Process Knowledge”

LeverX is a reliable and flexible SAP system integrator with a pragmatic, can-do approach, providing vast process/technical HR IT knowledge that includes standard product offerings and custom app development.

Jekaterina Timofejeva

SAP HCM & SuccessFactors Service Lead, Girteka Group

“We highly recommend Emerline as a technology partner””

The Emerline team involved in the completion of our projects demonstrated a high level of responsiveness and support by solving issues and answering questions ASAP. They were diligent and proactively addressed the challenges that arose during the development process. Our cooperation ran smoothly and professionally, and Emerline quickly provided direct and correct advice when necessary. We highly recommend Emerline as a technology partner for large and complicated development projects that also delivers continuous cooperation with the provider on new projects.

DR. ANDREAS SCHWARZER

VP Global IT, FUCHS Group

"JBS was impressed with LeverX’s BMAX application"

After several years of successfully running multiple workflow processes through LeverX’s IPS application, JBS was excited to learn of LeverX’s BMAX application. We needed a means to govern material master data creation on a global scale, and LeverX was instrumental in the design, build, and deployment of a globally adaptable integrated IPS and BMAX master data creation process. We could not be more impressed with the outcome of this application, its user adoption, and its capabilities.

JENNIFER
HASLUND-NIELSEN

SAP SCM Functional Analyst, JBS

“A great partner that goes the extra mile to accommodate the customer/company”

A great partner that goes the extra mile to accommodate the customer/company. They can accomplish what is needed to move their business forward. No question is too much for LeverX. They’ve been a great resource for any area of SAP. What I like about LeverX is that I don’t think there is any question that is too much for them. We bounced a lot of things off them that might not appear in their wheelhouse, but a lot of times they have answers just because of their experience and knowledge. We found them to be a great resource to bounce things off and get ideas even if they might not be specific to PLM. When you are out of time and have limited resources, LeverX has your solution. LeverX is a big bang for your buck that will bring in a lot of knowledge at one time to check off all the boxes.

Tim Flaherty,

Executive Vice President, Chief Financial Officer, Enable Injections, Inc.

“We recommend LeverX as a reliable ERP implementation and support partner”

The SAP solution supported by the LeverX team helped us achieve the utmost process automation and optimized financial and logistics processes. The project was delivered on time. We hope that our cooperation will gain the status of a time-tested partnership. We recommend LeverX as a reliable ERP implementation and support partner.

JAVED IQBAL

SAP Project Manager, Retal Group

“LeverX has extensive knowledge in the area of engineering management processes”

LeverX has extensive knowledge in the area of engineering management processes and provides flexible products and SAP solutions/add-ons that help our end users to perform their business efficiently. Their team is dedicated to deliver the right solution and always works closely with us to understand our needs and proposes solutions that meet our requirements.

Wolfgang Berger

Director, Enterprise Applications, IMAX

Implementation Roadmap

We follow the SAP Activate methodology, which breaks down the implementation of SAP SuccessFactors into six essential stages:

System assessment and compliance review

System landscape analysis: Review SAP ECC or S/4HANA environment, including modules, custom code, and integrations.
SAP Readiness Check execution: Identify incompatible objects, add-ons, and required technical adjustments.
Process and data review: Analyse finance, procurement, and logistics processes for inconsistencies or outdated logic.
UK compliance screening: Check VAT handling, HMRC reporting structures, and data processing against UK GDPR expectations.
Risk mapping: Identify upgrade blockers related to code, data quality, or external integrations.

Setting Goals and Objectives: Establish and agree on the goals to be achieved throughout the project.
Assembling the Project Team: Appoint team members and define their roles and responsibilities.
Project Plan Development: Create a comprehensive plan that outlines project phases, timelines, resources, and key performance indicators.
Budget Determination: Estimate and approve the budget.
Specifications Preparation: Develop the technical and functional specifications for the development team.

Prepare

Ensuring Business Requirements are Met: Check that SAP SF aligns with business requirements and project objectives.
Data Validation: Verify the accuracy and compliance of the data.

Explore

Data Migration: Transfer data from existing systems to the new one.
System Configuration: Set up the solution according to requirements and specifications.
Customization: Develop additional features and modules, if the standard solution does not meet all needs.
Integrations: Configure SAP SF to work with other IT systems and applications.

Realize

Testing: Perform functional, integration, regression, and load testing to ensure that all works correctly.
User Training: Organize sessions to help users become familiar with the new system.

Deploy

System Readiness Check: Verify that the system is ready for operational use.
Launch: Officially transition to active use of SAP SF.
Ongoing Support: Continuously monitor solution performance to identify and resolve any issues.

Run

Frequently Asked Questions

How does SAP S/4HANA handle Making Tax Digital requirements in practice?

S/4HANA supports Making Tax Digital through SAP Document and Reporting Compliance and standard VAT reporting structures. VAT data is captured at transaction level and stored in structured tables used for digital submissions. The system can generate VAT returns in the format required by HMRC APIs.

This removes the need to extract data into external tools for submission. It also reduces manual adjustments before filing. However, configuration must match the company’s VAT structure, including partial exemption and group reporting scenarios.

What changes are required to meet UK SOX-style audit expectations?

An upgrade does not automatically ensure compliance with UK SOX requirements. The system must be configured with proper internal controls after the upgrade.

This includes defining segregation of duties, controlling access to financial transactions, and logging user activity. SAP GRC or embedded access control functions are typically used for this purpose. Audit readiness depends on how these controls are designed and tested after the system is upgraded.

What happens to historical financial data during an upgrade?

Historical data is not lost during a system conversion. It is either migrated in full or selectively retained, depending on the chosen approach.

In most UK projects, financial records are preserved to meet audit and statutory reporting requirements. Data structures may change, but document chains and transaction history remain accessible. This is critical for audits, especially when prior periods are reviewed under HMRC or external audit processes.

What role does the upgrade play in ESG and Net Zero reporting?

S/4HANA provides the data structure required to collect and organise sustainability metrics. Financial and operational data can be linked to emissions and resource usage.

When connected to SAP sustainability tools, the system supports calculation and reporting of carbon data. The upgrade ensures that source data is consistent, which is required for external ESG disclosures and internal tracking.

1

An expert will reach out to you to discuss your specific requirements and objectives.
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We’ll sign an NDA to ensure any sensitive information is kept secure and strictly confidential.
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We’ll work with you to prepare a customised proposal based on the project’s scope, timeline, and budget.