SAP S/4HANA · MIGRATION & DEPLOYMENT
Keep what works and move forward: a brownfield conversion takes your SAP ECC system to S/4HANA with configuration, custom code and history intact.
Talk to an SAP S/4HANA consultant
A specialist replies within one business day — no obligation.
Your details are only used to answer your enquiry — see our Privacy Policy.
OVERVIEW
A brownfield conversion turns your existing ECC system into S/4HANA. It is often chosen by companies whose processes still serve them well and who want to keep their transactional history and investment in configuration.
Brownfield usually means less business change at go-live, because users keep familiar processes. The trade-off is that existing complexity and custom code move with you, so preparation and clean-up are essential.
Webtel helps you decide whether brownfield fits, then prepares your system, adapts custom code and plans improvements after conversion so you gain the benefits of S/4HANA over time.
Webtel helps you make this decision based on facts. We look at your system, data, custom code, business priorities and budget, explain the options in plain language and give you a recommendation you can take to your board, together with a realistic plan.
CAPABILITIES
Transactional data carries over.
Familiar processes at go-live.
Prerequisites and code adaptation.
Improvements after conversion.
COMMON CHALLENGES
These are the issues we see most often. Each one is planned for from the start, so it does not surface in the week before go-live.
01
Old customisations come along.
02
Preparation takes time.
03
Large systems need long windows.
04
Processes stay the same.
AT A GLANCE
SAP S/4HANA is SAP's current-generation ERP for mid-sized and large enterprises. It runs on the SAP HANA in-memory database, with a simplified data model and a modern user experience.
Finance and logistics share one source of truth, including the Universal Journal.
Reports and planning run on live data instead of overnight batches.
Role-based apps that work on desktop, tablet and phone.
Insight inside the transactions people already use.
Public cloud, private cloud or your own data centre.
HOW IT WORKS
We analyse your current system, custom code, data and business goals.
Together we choose the approach and deployment that fit best.
The migration or implementation is carried out in tested cycles.
We support go-live and help you start using new capabilities.
WORKED EXAMPLE
How brownfield is combined with simplification.
See It in a Demo →WHY IT MATTERS
Often quicker than a rebuild.
Consultants who have done this before.
Costs, risks and timeline set out clearly.
A decision based on facts, not assumptions.
Tested cycles before the real cut-over.
A platform for SAP's newest capabilities.
IN DETAIL
BEFORE YOU GO LIVE
Having these ready before the first workshop shortens the assessment and gives you a more reliable plan and budget.
Free guides and checklists →
WHY WEBTEL
FAQS
When your processes still fit, you want to keep history and you want less business change at go-live.
Yes. Removing unused code and archiving data before conversion reduces risk and downtime.
Brownfield is the approach; system conversion is the technical work that carries it out.
Mainstream maintenance for SAP ECC 6.0 ends after 2027, with optional extended maintenance available until the end of 2030. Many companies are planning their move now to avoid a rush.
It depends on the approach, the size of your system and the amount of custom code. We give you a realistic plan after an assessment.
Some elements can change, but the core choice should be made early. A good assessment reduces the risk of changing course mid-project.
EXPLORE MORE
Talk to our consultants about your landscape, your goals and your timeline.