Lumivara ForgeClean Core
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The Simplification Database

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What you'll learn

The Simplification Database is SAP's catalog of what changed in S/4; check against it with the release-matched S4HANA_READINESS_2023 variant via SYCM or 'Analyze Custom Code.'

  • The Simplification DB catalogs what S/4 removed or changed; readiness checks compare against it.
  • Reach it via SYCM or the 'Analyze Custom Code' app.
  • Use the release-aligned variant S4HANA_READINESS_2023.

The Simplification Database is SAP's shipped catalog of everything that changed in S/4 — removed transactions, function modules, tables, and fields — and it is the data the readiness checks compare your code against. You reach it through transaction SYCM or the Fiori app 'Analyze Custom Code,' driven by the release-aligned ATC check variant S4HANA_READINESS_2023.

There is exactly one Simplification Database per target release, so you must load the target release's DB rather than an older one; checking against yesterday's catalog gives findings for the wrong destination. This release-pinning is why the variant name carries the year — the 2023 variant maps to the 2023 simplification content.

You can even run the simplification check from a non-S/4 source system by importing the Simplification Item Catalog there, per SAP Note 2436688 — and that import is exactly what makes the Remote ATC topology work, with a central ATC system holding the catalog and checking remote source systems over RFC.

Key points

  • The Simplification DB catalogs what S/4 removed or changed; readiness checks compare against it.
  • Reach it via SYCM or the 'Analyze Custom Code' app.
  • Use the release-aligned variant S4HANA_READINESS_2023.
  • One DB per target release — always load the target's, not an older one.
  • Import the Simplification Item Catalog (SAP Note 2436688) to enable Remote ATC.

Examples

Pointing the check at the right release

Run 'Analyze Custom Code' (or SYCM) with variant S4HANA_READINESS_2023 against the target-release Simplification Database — never an older release's catalog.

Source notes: clean-core-curriculum §2.5

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