If your business is still running on SAP ECC 6.0 (Enhancement Package 6–8), the 31 December 2027 mainstream maintenance deadline is no longer a distant concern, it is already shaping migration capacity, budget cycles, and consultant availability across Ireland.
Across Ireland and the wider EU, organisations are moving early to secure experienced S/4HANA consultants, avoid rising project costs, and maintain control over timelines. Those that delay often face rushed decisions, limited resource availability, and increased implementation risk.
Yes Dynamic provides SAP S/4HANA consulting services in Ireland to help businesses plan and execute their transition with clarity, well before deadline pressure takes over.
Understanding the SAP ECC Support Timeline
It is important to understand the full support picture before making migration decisions:
- SAP ECC 6.0 EHP 0–5: Mainstream support ended 31 December 2025.
- SAP ECC 6.0 EHP 6–8: Mainstream support ends 31 December 2027.
- Extended Maintenance (EHP 6–8): Optional paid extension available until 31 December 2030, at an estimated ~2% additional maintenance uplift (~9% increase on total cost).
- SAP ERP Private Edition Transition Option: For large, complex landscapes committed to SAP’s cloud strategy (RISE with SAP), an additional bridge option exists until 31 December 2033.
Why Irish Businesses Are Prioritising SAP S/4HANA Migration
The move to SAP S/4HANA is no longer only about staying supported. It’s about staying competitive. S/4HANA introduces a fundamentally new way of managing data and operations, built exclusively on SAP’s in-memory HANA database (High-performance ANalytic Appliance). This architecture enables real-time data processing, faster financial insights, and a more agile digital core.
Key technical capabilities that S/4HANA delivers which SAP ECC cannot:
- Real-time analytics and reporting: Data is processed in-memory rather than on disk, eliminating batch processing windows and enabling instant insights.
- Simplified data model: The Universal Journal (ACDOCA) replaces dozens of separate tables in finance, while MATDOC consolidates over 26 inventory management tables, reducing data redundancy and improving performance.
- Built-in AI and machine learning: S/4HANA includes a Predictive Analytics Library (PAL), advanced machine learning libraries, robotic process automation tools, and IoT integration — all native to the platform. ECC requires these to be built externally.
- Embedded analytics: Analytical and transactional workloads (OLAP and OLTP) run on the same system simultaneously, removing the need for separate BI/BW layers.
- SAP Fiori interface: A modern, role-based, mobile-ready user experience replaces SAP GUI.
What Does SAP S/4HANA Consulting Actually Involve?
SAP S/4HANA consulting covers the full journey from readiness assessment through to go-live and beyond. For most businesses, that breaks down into three broad areas:
1. SAP S/4HANA Migration Planning and Approach
There are three primary migration paths, using SAP’s official terminology:
- Greenfield: A fresh implementation on S/4HANA, giving you a clean slate to redesign processes from the ground up. Typically takes longer but delivers the greatest process transformation.
- Brownfield (System Conversion): Converts your existing ECC system to S/4HANA using SAP’s Software Update Manager (SUM) with Database Migration Option (DMO), preserving existing configurations, custom code, and historical data. Lower disruption but requires custom code remediation.
- Selective Data Transition (SAP’s official term): A hybrid approach that consolidates or carves out selected entities (e.g. company codes) or processes into a single S/4HANA system. Ideal for complex, multi-system landscapes.
Choosing the right path depends on your current system landscape, your appetite for change, and your strategic timeline.
2. SAP S/4HANA Data Quality and Governance
Poor data remains the single greatest risk in any S/4HANA migration. Legacy ECC environments often contain years of duplicated, incomplete, or outdated master data. Because S/4HANA’s in-memory architecture processes data in real time, data quality issues that were ‘hidden’ in batch-processing environments surface immediately after go-live. Getting this right before migration is not optional, it is foundational.
3. SAP S/4HANA Post-Migration Optimisation
Going live is only part of the job. Realising the full value of S/4HANA including real-time analytics, built-in AI capabilities, process automation, and embedded reporting requires ongoing expertise and support after go-live.
Why Yes Dynamic for SAP S/4HANA Consulting in Ireland
Choosing the right partner has a direct impact on how smoothly your migration progresses and how much value you realise afterwards. Yes Dynamic takes a business-first approach to SAP S/4HANA consulting. The focus isn’t only on implementation; it’s on long-term outcomes.
SAP and Microsoft Integration Expertise for S/4HANA Projects
Many Irish organisations operate across both SAP and Microsoft Dynamics 365 environments. Working with a partner who understands how they connect removes integration complexity and avoids costly delays.
Accelerated SAP S/4HANA Migration Delivery in Ireland
Through its strategic partnership with Synovia Digital, Yes Dynamic leverages proven migration playbooks, pre-built data cleansing frameworks, and industry-specific templates that reduce deployment time without sacrificing governance or quality.
Trusted SAP S/4HANA Consulting Partner in Ireland
- SAP Certified Partner
- 100+ Irish organisations supported
- Fixed-scope readiness assessments
- Local delivery teams in Dublin, Cork & Galway
The result is a migration approach focused on delivering measurable business value — not just completing a project.
SAP S/4HANA in Ireland: Common Questions Answered
1. What is SAP S/4HANA?
SAP S/4HANA (SAP Business Suite 4 SAP HANA) is SAP’s modern ERP platform, built exclusively on the SAP HANA in-memory database. It enables real-time data processing, faster transactions, a simplified data model, and built-in AI and analytics capabilities. It is the successor to SAP ECC, whose mainstream support (EHP 6–8) ends 31 December 2027.
2. What is the difference between Greenfield and Brownfield S/4HANA migration?
A Greenfield migration is a fresh S/4HANA implementation, giving you a clean slate and the opportunity to redesign business processes. A Brownfield migration (system conversion) converts your existing ECC system to S/4HANA using SAP’s SUM/DMO toolset, preserving configurations and historical data with less disruption — but requiring custom code assessment and remediation. A third option, Selective Data Transition, is a hybrid approach for organisations with complex multi-system landscapes. The best path depends on your business complexity, process maturity, and strategic goals.
3. How long does an SAP S/4HANA migration take?
Based on industry data, most S/4HANA migrations take between 12 and 24 months, depending on the size and complexity of the organisation. Medium-sized businesses typically complete migrations in 12–18 months; larger, global organisations may require 18–24 months or more. Beginning readiness planning in 2025–2026 allows a controlled, phased transition well before mainstream support ends in December 2027.
4. What happens if we miss the 2027 SAP ECC support deadline?
Mainstream support ends 31 December 2027 for SAP ECC 6.0 EHP 6–8. After that date, SAP transitions customers to customer-specific maintenance, which carries significant restrictions: no new legal or regulatory updates, no new support packages, and no guaranteed kernel updates for new OS or database versions. Extended maintenance is available until 2030 at a ~2% cost uplift, but with reduced scope and ongoing compliance risk. Staying on ECC beyond 2027 without a migration plan introduces security, regulatory, and operational exposure. Early migration avoids this financial and technical risk.
5. Can Yes Dynamic support both migration and ongoing S/4HANA development?
Yes. Whether you need support for a defined migration project or ongoing development and optimisation resource post go-live, Yes Dynamic can provide the right expertise.
Start Your SAP S/4HANA Migration with a Readiness Assessment
A successful migration begins with clarity. Understanding your current system landscape, identifying risks early, and defining the right approach will shape every outcome that follows.
Book Your SAP S/4HANA Readiness Assessment in Ireland
Yes Dynamic works with organisations across Ireland to plan and deliver SAP S/4HANA transformations with confidence. A readiness assessment gives you:
- A clear view of your migration options, paths, and risks
- A realistic timeline aligned to the 2027 mainstream support deadline
- A prioritised roadmap with budget guidance
