As a Basis consultant, I’ve done multiple S/4HANA conversions — and each one taught me something new about the architecture. This blog is my technical deep dive into what changes under the hood when you move to S/4HANA.
Subtopics & Answers:
How S/4HANA differs from ECC at the system level Simplified data models, removal of legacy tables, and HANA-native optimizations.
Database migration and sizing strategy We used DBACOCKPIT and Quick Sizer to plan our HANA memory footprint.
Changes in transport management and client strategy STMS remains, but client-dependent objects behave differently post-conversion.
Impact on background jobs and batch processing SM37 cleanup and rescheduling was critical to avoid performance bottlenecks.
New monitoring tools and dashboards Fiori-based admin apps and enhanced Solution Manager integration.
Security and role redesign SU24 updates, Fiori catalog mapping, and new authorization concepts.
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