20 months. One ERP decision.

No second chances.

By December 31, 2027, SAP ECC mainstream maintenance ends. Greenfield, Brownfield, RISE, or GROW the path you choose now will define the next decade of your business, and the architecture practice guiding that choice matters just as much.
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Time remaining to 31 Dec 2027

19
Months
83
Weeks
6
Quarters
1
Budget Cycles

Four paths to S/4HANA

Four paths. One right answer for your business.

Most SAP partners pitch the path they’re built for. CyberTech is path neutral. We help you choose the right one for your data, customizations, SLAs, and operating model.

Greenfield

Clean redesign

18 to 24 months typical

Best when: Current customizations have become technical debt, and business processes have drifted away from best practices.
L

Lowest long term tech debt

L

Full SAP roadmap alignment

L

Highest organizational change burden

Brownfield

Convert in place

12 to 18 months typical

Best when: business processes are mature, stable, and customizations represent genuine competitive advantage.
L

Lowest near term disruption

L

Preserves customization investment

L

Carries forward existing tech debt

RISE with SAP

SAP managed

14 to 22 months typical

Best when: the landscape is complex and the business prefers vendor managed infrastructure.

L

SAP managed infrastructure

L

Modernization built into delivery

L

Less topology flexibility

GROW with SAP

Public cloud, fast fit

6 to 12 months typical

Best when: speed and standardization beat customization, and processes can align to SAP best practice.

L

Fastest deployment

L

Native AI and BDC readiness

L

Limited customization scope

2027 reverse timeline

The math is unforgiving.

Reverse engineered from a 31 December 2027 go live, with realistic float built in. Most enterprises that have not started planning by Q3 2026 will not hit the deadline cleanly on Greenfield or RISE.
Path Q2 26 Q3 26 Q4 26 H1 27 Q3 27 Q4 27
Greenfield Vendor selection Discovery + design Discovery + design Build + configure Test + migrate Go live
Brownfield Vendor selection Discovery + design Build + configure Test + migrate Go live
RISE Vendor selection Discovery + design Build + configure Test + migrate Go live
GROW Vendor selection Discovery + design Build + test Go live
Vendor selection Discovery and design Build and configure Test and migrate Go live and hypercare

Clean core risk patterns

What kills these projects, and how to see it coming.

From three decades of SAP engagement work, the patterns that most reliably predict trouble cluster into four categories.

Governance

  • Steering committee meets monthly with no decision rights
  • CIO sponsors but business owns no outcome
  • Change management treated as a workstream

Data

  • Master data quality deferred to cutover
  • No domain stewards before design phase
  • Historical migration scope undefined at design freeze

Architecture

  • Custom code volume not measured pre scope freeze
  • Integration inventory incomplete at design
  • Clean core not enforced through governance

Partner

  • Subcontracts more than 30 percent of delivery
  • Named proposal team differs from delivery team
  • Methodology not aligned to SAP Activate

What’s in the toolkit

Five resources your steering committee can use.

Everything is authored by the CyberTech Architecture Practice. The pack is designed to be useful whether you engage CyberTech or not.

The 2027 SAP Cloud ERP Transformation Guide

The anchor document the rest of the pack supports. Written for any competent program leadership team to run with.

Path decision matrix

A standalone working template with 12 weighted criteria, from customization differentiation to speed-to-value preference. Score each path, applies weights automatically, and surfaces the recommended path with audit trail behind every input.

2027 Reverse Timeline Planner

A standalone working template that reverse engineers transformation phases from your target go live, with built in float. Compares all four paths side by side for feasibility from today’s date and flags slipped kickoffs automatically.

Clean Core Risk Checklist

Twelve risk patterns across governance, data, architecture, and partner. Walked every 60 days with your steering committee. Tracks named owners, mitigation plans, and trends the high-risk count over time.

SAP Activate Methodology

How each SAP Activate phase, deliverable, and workstream maps to Greenfield, Brownfield, RISE, and GROW. Use during partner selection to validate methodology alignment, and during project planning to ensure no critical Activate deliverable gets dropped due to path specific assumptions.

From the field

The shortlist of firms who can deliver is already shrinking.

The capacity constraint is real. By Q3 2026, the SI capacity available for new SAP transformation kickoffs targeting a 2027 go live will already be visibly constrained. By Q1 2027, it will be acute. Customers who treat partner selection as a Q4 2026 problem will find their shortlist meaningfully shorter than it would have been six months earlier.

— CyberTech Architecture Practice, Q2 2026

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About CyberTech

CyberTech Systems & Software Inc. is a cloud transformation and spatial analytics firm headquartered in Oak Brook, Illinois. We partner with global enterprises across industries and specialize in SAP S/4HANA, BTP Integration Suite, BDC, RISE migrations, and AI driven enterprise architecture. Our partner posture is path neutral: we help clients choose the path that fits their environment, not the path that fits our engagement footprint. CyberTech is an SAP Gold Partner, an Esri Platinum Partner, and a Microsoft Solutions Partner.

To discuss this toolkit against your specific environment, contact
connect@cybertech.com