What is the SAP Brownfield Approach?

What is the SAP Brownfield Approach?

With the SAP Brownfield approach, you migrate your existing SAP system to SAP S/4HANA without rebuilding everything from scratch. Your data, processes, and custom code are kept and technically adapted.

In a nutshell: You keep your legacy system but bring it up to date technically and functionally.

What's the SAP Greenfield Approach?

The SAP Greenfield approach means you build a brand-new SAP S/4HANA system from the ground up. You don't carry over old processes or data – just what you truly need.

In a nutshell: You start fresh, leveraging best practices and the latest SAP processes.

Brownfield VS. Greenfield – Which is a Better Fit?

 

When Brownfield?

• You want to migrate to S/4HANA quickly and cost-effectively

• Your existing processes are working well

• You have a lot of custom developments (Z-transactions)

When Greenfield?

• You want to start fresh

• Your existing processes are outdated or messy

• You want to leverage SAP Best Practices and Fiori UX

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SAP HANA Brownfield Migration – The Complete Checklist 2025

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What is SAP FAA (Fully Activated Appliance)?