SAP S/4HANA Cloud Overview 2026 | Public vs Private vs On-Premise

Which S/4HANA Deployment Is Right for You?

The deployment decision is the single most consequential choice in an S/4HANA programme. It is driven by three questions, in order:

1. Are you migrating an existing SAP landscape, or starting fresh? Organisations converting an established ECC 6.0 system with years of custom ABAP code almost always need Private Edition or on-premise, because Public Edition does not support a brownfield conversion — it is greenfield only. A net-new SAP customer with no legacy to carry can start on Public Edition and go live far faster.
2. How much customisation do you genuinely need? Public Edition constrains you to SAP's standardised best-practice processes plus key-user and SAP BTP extensions ("clean core"). Private Edition and on-premise allow full custom ABAP and backend access. Be honest here: many organisations assume they need customisation they could actually shed, and the standardised path is cheaper to run and upgrade.
3. Who should own infrastructure and upgrades? Public Edition upgrades automatically every quarter; Private Edition gives you control over annual or bi-annual upgrades; on-premise puts hosting, patching, and upgrades entirely in your hands.

As a rule of thumb: mid-market and net-new buyers gravitate to Public Edition; enterprises migrating from ECC with heavy customisation land on Private Edition (see SAP S/4HANA Private Cloud); and only organisations with strict data-sovereignty or air-gap requirements still choose on-premise.

Deployment Options Compared

Deciding between the two cloud editions is where most buyers spend their evaluation time. We maintain dedicated pages for each so you can go deep on the one that fits:

SAP S/4HANA Public Cloud →

SAP S/4HANA Private Cloud →

RISE with SAP vs GROW with SAP

SAP wraps S/4HANA Cloud in two commercial programmes, and the one you are offered signals which edition SAP expects you to buy.

• GROW with SAP targets net-new and mid-sized customers adopting cloud ERP from scratch. It packages S/4HANA Cloud Public Edition with a standardised, ready-to-run configuration; SAP positions time-to-go-live as short as a few weeks in a pure greenfield scenario. Source: SAP Learning — Differentiating GROW and RISE with SAP.
• RISE with SAP targets existing SAP customers and larger enterprises modernising an established landscape. It packages S/4HANA Cloud Private Edition with a higher degree of customisation, supports both greenfield and brownfield (system conversion), and bundles SAP BTP, SAP Business Network, and managed infrastructure into a single subscription. See our RISE with SAP overview for what is inside the bundle.

In short: if you are net-new and want SAP's standard processes fast, you are a GROW/Public candidate; if you are converting ECC 6.0 and need to preserve custom processes, you are a RISE/Private candidate.

Why the SAP ECC Deadline Matters

The reason S/4HANA migration is on so many 2026 roadmaps is a hard maintenance cut-off. SAP will provide mainstream maintenance for SAP Business Suite 7 core applications — including SAP ERP 6.0 (ECC) — until the end of 2027. Optional extended maintenance is available for three further years, from the beginning of 2028 through the end of 2030, at a premium of two percentage points on the maintenance base. Source: SAP maintenance strategy.

Practically, that means running ECC after 2027 (or 2030 with the paid extension) leaves you on unsupported software with no new legal or regulatory updates. Because a full S/4HANA programme commonly runs 9–18 months for a brownfield conversion, organisations that have not yet started are already inside the planning window. The deadline is the "why now" — it does not change which deployment is right for you, but it does compress the timeline for deciding.

Migration Paths: Greenfield, Brownfield, Selective Data Transition

There are three recognised routes to S/4HANA, and your deployment choice partly determines which are open to you:

• Greenfield (new implementation) — a clean re-implementation on standardised processes, discarding legacy customisation. This is the only path available for Public Edition, and it is often the fastest way to realise clean-core benefits. Best when your legacy configuration has accumulated technical debt you are happy to leave behind.
• Brownfield (system conversion) — a technical conversion of your existing ECC system to S/4HANA in place, preserving history, custom code, and configuration. Available on Private Edition and on-premise. Best when your current processes are a genuine competitive asset and a re-implementation would be disruptive.
• Selective data transition (hybrid) — a middle path that migrates chosen data, processes, and configuration while re-implementing the rest. It offers more control than brownfield and less disruption than greenfield, at the cost of greater project complexity. Typically delivered by a specialist partner using purpose-built tooling.

Data quality is the factor that most often determines whether any of these paths runs to schedule. Poorly maintained master data — duplicate vendors, inconsistent material masters, orphaned open items — surfaces during migration and is the leading cause of go-live slippage regardless of edition. Invest in data cleansing early, and treat the migration as an opportunity to retire legacy customisation you can no longer justify. On Public Edition that retirement is effectively mandatory; on Private Edition and on-premise it is a discipline you have to impose on yourself.

Modules Overview

S/4HANA provides a comprehensive set of modules. Availability varies by deployment — Public Edition covers core scenarios while Private Edition and on-premise offer the full module portfolio.

• Finance & Accounting — General ledger, AP/AR, asset accounting, financial close, group reporting
• Supply Chain Management — Demand planning, supply planning, logistics, transportation
• Inventory Management — Real-time stock visibility, batch management, MRP
• Warehouse Management (EWM) — Advanced putaway/picking, wave management, yard management
• Quality Management — Quality planning, inspection, certificates, CAPA workflows
• MRP / Material Requirements Planning — Classic MRP, MRP Live, and Demand-Driven MRP
• Project Management — WBS, budgeting, time recording, project billing
• Procurement & Sourcing — Procure-to-pay, contract management, SAP Ariba integration
• Sales & Distribution — Order-to-cash, pricing, credit management, billing
• Human Resources (Basic) — Core HR, time management; full HCM via SAP SuccessFactors

Industry Fit

S/4HANA serves 25+ industries. Key sectors include:

• Manufacturing — Discrete, process, and mixed-mode
• Automotive — Supply chain, JIT/JIS, quality management
• Pharmaceuticals — Batch management, GxP compliance (Private Edition recommended)
• Aerospace & Defence — MRO, programme management (Private Edition recommended)
• Oil & Gas — Asset management, project accounting
• Retail — Supply chain, omnichannel operations
• Distribution — Warehouse management, logistics
• Financial Services — Integrated financials, risk and compliance
• Healthcare — Supply chain, financial management
• Professional Services — Project accounting, billing, time tracking
• Food & Beverage, Chemicals, Construction, Government, Education, Agriculture

Pricing

Pricing differs sharply by edition. Public Edition is a per-user subscription; Private Edition is a custom subscription (usually packaged as RISE with SAP); on-premise is a perpetual licence plus annual maintenance and hosting. Implementation — typically two to four times the software cost — is where most of the budget goes, so always model total cost of ownership over five years rather than list price alone. For a full breakdown by edition and a worked TCO example, see our SAP S/4HANA cost guide. If you want to see how S/4HANA Public Edition stacks up against a common cloud rival on price and fit, compare NetSuite vs SAP S/4HANA Public Cloud, and if you are still weighing the field, review the SAP S/4HANA alternatives and competitors.

Frequently Asked Questions

What is SAP S/4HANA Cloud?

SAP S/4HANA Cloud is SAP's next-generation, cloud-delivered ERP suite, built on the SAP HANA in-memory database and succeeding SAP ECC 6.0 and R/3. It provides real-time analytics, a simplified data model, and the SAP Fiori user experience. It is delivered in two cloud editions — Public Edition (multi-tenant SaaS) and Private Edition (single-tenant, hyperscaler-hosted) — plus a traditional on-premise option, and serves organisations across more than 25 industries.

Is SAP S/4HANA Cloud the same as SAP Cloud ERP?

Not exactly. "SAP Cloud ERP" is a broad, informal term people use for SAP's cloud-delivered ERP products, which include SAP Business One, SAP Business ByDesign, and SAP S/4HANA Cloud. S/4HANA Cloud is SAP's flagship suite aimed at mid-market and large enterprises. If you are still deciding which SAP cloud ERP fits your company, that comparison happens one level up — this page assumes you have already chosen S/4HANA and are selecting a deployment model.

What is the difference between RISE with SAP and GROW with SAP?

They are two commercial programmes for S/4HANA Cloud. GROW with SAP is for net-new, mid-sized customers and packages S/4HANA Cloud Public Edition with a standardised, fast greenfield deployment. RISE with SAP is for existing SAP customers and larger enterprises, packages S/4HANA Cloud Private Edition with greater customisation, supports brownfield conversion from ECC, and bundles SAP BTP, SAP Business Network, and managed infrastructure into one subscription.

How do I choose between Public and Private Edition?

Choose Public Edition if you are a net-new or mid-market buyer who wants standardised best-practice processes, quarterly automatic upgrades, fast deployment, and the lowest total cost — accepting that it is greenfield-only and enforces a clean core. Choose Private Edition if you are migrating an existing ECC 6.0 landscape, need custom ABAP or backend access, or operate in a regulated industry that requires a single-tenant environment. See our Public Cloud and Private Cloud pages for detailed comparisons.

What is "clean core" and why does it matter?

Clean core is the principle of keeping the ERP's standard code and data model unmodified, moving customisation into governed extensions on SAP BTP rather than altering the core. It matters because a clean core keeps upgrades cheap and low-risk — critical for Public Edition, which upgrades automatically every quarter. Public Edition enforces clean core; Private Edition and on-premise recommend it but still permit full custom ABAP, which is one reason those editions carry higher long-term maintenance cost.

When does SAP ECC support end?

SAP provides mainstream maintenance for SAP ERP 6.0 (ECC) and the rest of SAP Business Suite 7 through the end of 2027. Optional extended maintenance runs for three more years, from the start of 2028 to the end of 2030, at a two-percentage-point premium on the maintenance base. After that, ECC is unsupported. This deadline is the primary driver behind most current S/4HANA migration programmes, since a brownfield conversion commonly takes 9–18 months to complete.

Is SAP S/4HANA Cloud suitable for mid-market companies?

Yes. S/4HANA Cloud Public Edition is designed for organisations from roughly 200 employees upward and is widely used by mid-market companies that are willing to adopt SAP's standardised processes. For smaller organisations, SAP's other cloud ERPs — SAP Business ByDesign or SAP Business One — are usually a better fit than S/4HANA.