SAP S/4HANA Migration · Migration Scenarios: Greenfield, Brownfield & Selective

What is the core trade-off that should drive the choice between keeping the old system vs starting fresh in an S/4HANA migration?

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More in Migration Scenarios: Greenfield, Brownfield & Selective

A customer's ERP source system still runs on Oracle, not HANA. Does that block a system conversion to S/4HANA, and what handles the database side?

SAP splits a migration into Preparation, technical implementation, and process adaptation. Where do prechecks/preconversions run, and why does that placement matter?

When you use a migration object in the cockpit, which fields does it activate by default, and what's the trap for someone who assumes a full field set?

A stakeholder calls the project a 'brownfield' migration. Which SAP scenario is that, and what concretely survives the move?

You must keep a system's business downtime as short as possible during conversion. Do you pick the standard or the downtime-optimized procedure, and what do you pay for it?

A customer wants SaaS/cloud S/4HANA but is leaning toward a brownfield conversion. What constraint do you have to flag?

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