Specialty
SAP S/4HANA
Finance, procurement, sales, and manufacturing in one ERP, in real time and in the right edition for your company.
Migration to SAP S/4HANA
Migration to SAP S/4HANA: from ECC to the new ERP with risk under control.
SAP ECC to SAP S/4HANA migration with assessment, roadmap, code and data adaptation, conversion rehearsals, and a planned cutover before 2027.
SAP ECC → S/4HANA conversionConversion rehearsal 2 of 3 · QA environment
- Custom code78%
- Business Partner (CVI)92%
- Data quality66%
- Integration tests45%
- Simplification itemsAddressed
- Add-ons and interfacesUnder review
- Cutover and fallback planIn preparation
full cutover simulationRehearsal 3
- end of SAP ECC 6.0 mainstream maintenance
- 12/31/2027
- approaches: greenfield, brownfield, or selective transition
- 3
- lower infrastructure cost on Private Cloud, per clients
- 60%
Overview
Leave SAP ECC with a plan, not in a rush.
SAP ECC 6.0 mainstream maintenance ends on December 31, 2027, and the optional extension to 2030 comes at additional cost. Moving to SAP S/4HANA is a chance to simplify processes, work with real-time data, and adopt SAP Fiori apps, rather than just switching versions.
Grupo Intelsis starts with an assessment of customizations, integrations, and data volume, recommends the approach (greenfield, brownfield, or selective transition), and plans phases, dependencies, checkpoints, and contingencies before touching the production environment.
Execution moves forward in controlled cycles, with conversion rehearsals, integration testing, and a go-live supported by specialists. Clients who moved to Private Cloud report critical operations preserved during migration and 60% lower infrastructure costs.
Highlights
- Code, data, interface, and add-on assessment
- Greenfield, brownfield, or selective transition
- Private Cloud via RISE with SAP, cloud, or on-premise
- Conversion rehearsals and cutover with a fallback plan
- Hypercare and evolution after go-live
Why Grupo Intelsis
Migrations that protect what already works.
Assessment before budget
We analyze customizations, integrations, add-ons, and data volume to decide what to migrate, adapt, simplify, or leave behind.
Critical operations protected
Phases, dependencies, checkpoints, and contingencies are planned upfront. Clients who moved to Private Cloud report no stoppage of critical operations.
Customizations kept with judgment
We keep the developments that differentiate your business, retire what nobody uses, and move to SAP BTP what can leave the core.
The right cloud for your SAP
RISE with SAP, a hyperscaler, or your own data center: as a Google Cloud Premier Partner, AWS Partner, and Microsoft Partner, we assess every option.
Scope
Everything a conversion to SAP S/4HANA requires.
We cover the technical and functional workstreams of the migration, from the first assessment to stabilization in production.
SAP Readiness Check
Analysis of the ECC landscape to map simplification items, add-ons, interfaces, and data volume before sizing the project.
Roadmap and business case
When to migrate, in what order, and with which approach, with risks, dependencies, effort, and business benefits made explicit.
Custom code adaptation
Usage analysis and adjustment of ABAP code to S/4HANA changes, retiring developments that are no longer used.
Data and Business Partner
Data cleansing and archiving, conversion of customers and suppliers to Business Partner, and balance reconciliation.
Interfaces and add-ons
Review of SAP and non-SAP integrations, third-party add-ons, and extensions, with end-to-end testing.
Infrastructure and SAP HANA
SAP HANA sizing and a choice between RISE with SAP, a hyperscaler, or your own data center, with specialized Basis support.
Rehearsals and testing
Mock conversions, integration and regression testing, and downtime measurement to calibrate the cutover.
SAP Fiori and adoption
Role-based SAP Fiori apps, training for business teams, and change management so the new system is truly used.
Key decisions
Four decisions that shape your migration.
Made early and with data from your landscape, they reduce rework, cost, and cutover risk.
Approach
How to get there
Reimplement, convert, or migrate selectively?
- Greenfield: a new design based on the standard
- Brownfield: conversion with history and customizations
- Selective transition: chosen units, processes, or periods
- Waves by company or country
Edition and hosting
Where the system will run
Private Cloud, Public Cloud, or your own infrastructure?
- Private Cloud via RISE with SAP
- Public Cloud via GROW with SAP (greenfield)
- A hyperscaler or your own data center
- High availability and disaster recovery
Data
What to bring along
How much history should move, and what should be archived first?
- Master data cleansing
- Archiving and data volume
- Customers and suppliers as Business Partners
- Balance reconciliation
Code
What to keep
Which customizations still create business value?
- Code usage inventory
- Adaptation to S/4HANA changes
- Extensions on SAP BTP
- Retirement of unused code
Conversion path
From readiness to hypercare, with no risky shortcuts.
With SAP ECC mainstream maintenance ending in 2027, every stage needs time for rehearsals and adjustments.
- Stage 1
Readiness and assessment
SAP Readiness Check and interviews with business teams to measure the impact, effort, and risks of the conversion.
- Stage 2
Roadmap and approach
Choice of greenfield, brownfield, or selective transition, plus edition, hosting, and migration waves.
- Stage 3
ECC preparation
Data cleansing and archiving, Business Partner, custom code adaptation, and technical prerequisites.
- Stage 4
Conversion rehearsals
Mock conversions on copies of the system to validate data, measure downtime, and fine-tune the plan.
- Stage 5
Cutover and go-live
A planned downtime window, validation checkpoints, a fallback plan, and specialists on hand for the switchover.
- Stage 6
Hypercare and evolution
Stabilization, adoption support, and a roadmap for new capabilities such as SAP Fiori apps, analytics, and Joule.
How we deliver
From the first conversation to a stable new landscape.
Free diagnostic session
In 30 minutes, we understand your current ECC, timelines, risks, and the questions the assessment must answer.
Migration plan
Phases, dependencies, validation checkpoints, and a contingency plan defined with business and IT.
Execution in controlled cycles
Preparation, rehearsals, and adjustments in short iterations, with frequent validation of data, processes, and performance.
Supported go-live and hypercare
Specialists at the switchover, intensive monitoring in the first weeks, and continuous improvement of the new landscape.
Frequently asked questions
Questions about Migration to SAP S/4HANA
What happens to SAP ECC after 2027?
The system keeps running, but SAP ECC 6.0 (EHP 6 to 8) mainstream maintenance ends on December 31, 2027. SAP offers optional extended maintenance until the end of 2030 at additional cost. Without that extension, or once it ends, your landscape no longer has regular coverage for fixes and legal updates.
Greenfield, brownfield, or selective transition: which should we choose?
Greenfield is a new implementation, suited to redesigning processes based on the standard. Brownfield is a conversion of the current system that preserves history, configuration, and customizations. Selective transition combines both and moves only the units, processes, or periods you choose. The decision comes out of the assessment, weighing risks, timelines, and the value of each customization.
Can we migrate without stopping operations?
Every conversion requires a downtime window, but it can be planned and reduced. Rehearsals measure the actual duration of each step, the cutover is rehearsed with business teams, and a fallback plan is defined before the switchover. That is also why go-live dates usually avoid critical periods such as closings and sales peaks.
Does moving to S/4HANA mean moving to the cloud?
Not necessarily. SAP S/4HANA can run on Private Cloud, contracted through RISE with SAP, on Public Cloud through a new implementation, or on infrastructure your company manages, in the cloud or in a data center. Many companies use the migration to leave their own infrastructure behind, and the choice weighs cost, control, and regulatory requirements.
How long does a migration to SAP S/4HANA take?
It depends on the size of the system, the volume of customizations and interfaces, the approach, and the number of companies and countries. SAP Readiness Check and the assessment make it possible to estimate effort with data from your landscape. The sooner the analysis starts, the more room you have for rehearsals and adjustments before mainstream maintenance ends in 2027.
Keep exploring
Solutions that connect.
Next step
How far is your ECC from being ready for S/4HANA?
In a free 30-minute diagnostic session, we understand your landscape and show you where to start your migration.