---
title: "What Differs at Runtime"
description: "MDM detects the release of your on-premise system and applies what that release offers: record numbers with leading zeros, longer material numbers, fields and operations per release, your own fields."
source: "https://help.rikaiso.com/public-cloud/2026.2/private-edition-runtime-differences"
edition: "public-cloud"
editionLabel: "S/4HANA Public Cloud"
version: "2026.2"
latest: true
language: "en"
section: "Information for Administrators > Setting Up SAP S/4HANA Cloud Private Edition (On Premise)"
updated: "2026-11-05"
---

# What Differs at Runtime

> MDM detects the release of your on-premise system and applies what that release offers: record numbers with leading zeros, longer material numbers, fields and operations per release, your own fields.

> **Draft brief for authors.** Replace with the final text; keep the concept-page structure.

**Page type:** Concept · **Audience:** Administrator, Business user (Private Edition)

**Contains:** MDM identifies the release from the interfaces and reports it (the connection status, the assistant's capabilities); record numbers with leading zeros; 40-character material numbers; fields and operations a release lacks are refused with a message that names the system; columns that exist only on premise; your ZZ1_ and YY1_ fields; what is refused while the release is not identified (the first minutes after a destination change, a release MDM has not recorded); what is still unverified.

**Related information:** `concept-editions`, `equipment-private-edition`, `messages-upload`.

**Source in the product repository:** `docs/customer-setup-private-edition.md` §7, `docs/sap-editions.md`, `srv/sap-editions.gen.json`.