SAP S/4HANA deployment choices and permission migration guide

Enterprises planning an SAP S/4HANA transformation can choose between cloud‑based and on‑premises operating models. Cloud options include public, private and hyperscaler services, each offering different levels of standardisation, automatic updates and responsibility for infrastructure. On‑premises deployment retains greater control over hardware, custom code and compliance but requires the organisation to manage the environment.

A separate guide outlines the five‑phase approach to migrating authorisations to S/4HANA. After project planning, the preparation phase builds knowledge of SAP security guides, simplification lists and existing custom transactions. The realisation phase implements the migration using standard tools such as SU25, SU24, PFCG and optional solutions like Xiting Authorizations Management Suite (XAMS). The final phase closes the project and validates the new authorisation concept.