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The S/4HANA Conversion Handbook.

A forty-two page technical handbook on the mechanics of an S/4HANA conversion. FUE conversion math from first principles. The Bill-of-Materials methodology. Engine-by-engine reconciliation. The conversion event as it actually runs.

Research Paper 42 pages Published April 2026 Format: PDF Access: Gated
What You'll Learn

Six learning outcomes from active matters.

  1. The FUE conversion equation, line by line. Professional, Functional, Productivity, and Developer FUE categories. The ratios. The exceptions. The four conversion math errors we most often see at vendor proposal.
  2. The Bill-of-Materials methodology. Five steps from legacy entitlement to converted profile. The reconciliation tables. The carryover decisions that move headline conversion price 20-35%.
  3. Engine reconciliation, metric by metric. All 17 runtime engines without a native FUE equivalent. The conversion treatment. The entitlement-preservation language we negotiate.
  4. Indirect-use mapping through conversion. How indirect-use entitlement is treated under the conversion event. The Digital Access conversion offer, decoded.
  5. Common errors in SAP's opening conversion proposal. The four errors we find in roughly 70% of opening proposals — and how to surface them without antagonising the conversation.
  6. Conversion timing and audit cycle. How USMM/LAW measurement immediately before conversion materially shapes the converted entitlement. The two timing scenarios we recommend.
Table of Contents

Seven chapters. 42 pages.

Chapter IFUE conversion math, from first principlespg. 5
Chapter IIThe four conversion errors at proposalpg. 11
Chapter IIIThe Bill-of-Materials methodologypg. 16
Chapter IVEngine reconciliation: metric-by-metric mappg. 22
Chapter VIndirect-use mapping through conversionpg. 28
Chapter VIErrors in SAP's opening conversion proposalpg. 33
Chapter VIIConversion timing and the audit cyclepg. 38
Who It's For

Four audiences. One reference.

Heads of SAM

SAM leads running the entitlement reconciliation. The FUE math and Bill-of-Materials chapters are the operational reference.

Procurement Directors

Procurement owners negotiating the conversion proposal. The opening-errors and engine-reconciliation chapters are the negotiation guidance.

Enterprise Architects

Architects validating the conversion technical profile. The engine and indirect-use chapters are the architectural reference.

Finance Business Partners

Finance partners modelling the conversion cost. The math chapter is the financial-model reference.

The SAP conversion proposal opened at fourteen point eight million across FUEs and engines. The Bill-of-Materials reconciliation surfaced four math errors and closed the conversion at nine point seven with carryover preserved on every engine.

Head of SAMEuropean Pharmaceutical Group · Conversion Q1 2026
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