Convert your SAP named user mix into Full User Equivalents. The FUE estimator and the buyer side moves before any S/4HANA conversion.
SAP S/4HANA replaced the old ECC named user types with the Full User Equivalent metric. Advanced users weigh full, core users weigh a fraction, and self service users weigh almost nothing. The mix, not the headcount, sets the number.
Run the estimator first, then defend the classification before SAP measures it.
SAP FUE estimator
These carry roughly one FUE each. They are the full transactional users across finance, supply chain, and operations.
These convert at roughly five to one, so about a fifth of a FUE each. Most ECC Professional users belong here after a clean review.
These convert at roughly thirty to one. Reclassifying users into this tier is the single largest FUE reduction lever.
| User tier | Approx FUE weight | Buyer side move |
|---|---|---|
| Advanced / Professional | 1.0 | Confirm the count is truly transactional |
| Core / functional | 0.2 | Move over classified Professionals here |
| Self service / employee | 0.03 | Reclassify view and request only users |
The standard SAP line is that the FUE conversion is a technical mapping and the ratios are fixed. We disagree. In our engagements the conversion is the negotiation. The ratios are anchored in the contract, and the classification of each user is contestable. The buyer side move is to reclassify the user base down to its real function before the conversion is locked, not to accept SAP's default mapping of every ECC Professional as an advanced FUE.
The SAP number is rarely about the rate. It is about the user classification and the document count behind indirect access. Fix the baseline first, then negotiate.
A Full User Equivalent is the S/4HANA user metric that converts named users into a single weighted count. Advanced users weigh about one FUE, core users about a fifth, and self service users about a thirtieth.
It is directional, calibrated to the conversion ratios we see in real S/4HANA contracts. Your contracted ratios govern the final number, so treat the output as a planning band, not a quote.
Reclassifying over classified Professional users into the core or self service tier. Most ECC estates carry 20 to 40 percent of users at a higher tier than their real function justifies.
Yes for S/4HANA. The old Professional, Limited Professional, and Employee Self Service types convert into the FUE count. Pre conversion contracts may keep the old metrics until conversion.
Yes. The classification of each user is contestable. A clean reclassification before the conversion is locked is the core buyer side move.
Yes. It is free and runs in your browser. No payment and no account required.
No. The output is buyer side benchmark data. Build the position internally, then negotiate on a defended count.
We run the reclassification and the conversion modeling internally, benchmark against our deal database, and sit at the table during the negotiation. We are not an SAP partner.
Tool output is the anchor. Walk into the SAP meeting with a number you trust and the negotiation reshapes itself.
Model five year RISE with SAP total cost against your current ECC baseline. Named user mix, FUE conversion, and the bundle premium, in your browser.
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Independent buyer side advisory. No vendor influence. No sales kickback. We sit on your side of the table when you negotiate with SAP.
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Run the SAP RISE TCO and digital access calculators free in your browser. The buyer side math we use across ECC, S/4HANA, and RISE estates. No email wall.
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