The S/4HANA Readiness Assessment Checklist

75 Key Tasks for a Flawless ECC Conversion

Don’t let a missed configuration halt your cutover. Download the definitive tactical guide for a safe System Conversion (Brownfield).

The S/4HANA Readiness Assessment Checklist

A "Brownfield" Conversion is a High-Wire Act.

Migrating from SAP ECC to S/4HANA is not merely a technical upgrade; it is a fundamental re-architecture of your digital core. The risk isn't just in the software update—it lies in the thousands of dependencies between your custom code, your historical data, and the new mandatory logic of the Universal Journal.

One overlooked step—whether it’s a failure to reconcile Asset Accounting delta areas or forgetting to archive legacy data—can delay your go-live by weeks.

We built this checklist to ensure you don't miss a step.

What is Inside the Checklist?

This is not a high-level strategic overview. This is a granular, 4-part tactical guide derived from over 100 successful projects. It breaks down the 75 critical actions required to bridge the gap between ECC stability and S/4HANA innovation.

Part I: Strategic Planning (Tasks 1–15)

  • Scope Definition: How to validate your system release against the Software Update Manager (SUM) requirements.

  • Sizing & Archiving: Tactics to reduce your HANA database footprint before migration to lower ongoing costs.

  • Readiness Checks: Executing the official SAP Readiness Check to identify "Simplification Items" early.

Part II: Technical Cleanup (Tasks 16–40)

  • Custom Code Remediation: A step-by-step approach to identifying code that references obsolete tables (like GLT0 or BSEG) and adapting it for ACDOCA.

  • Interface Management: Documenting and testing dependencies for external systems that may break during the database upgrade.

Part III: The Financial Core (Tasks 41–65)

  • This is the ERPfixers difference. Most checklists gloss over Finance; ours dives deep.

  • Universal Journal Migration: Specific steps for merging GL accounts and Cost Elements.

  • Material Ledger Activation: Mandatory configuration steps for actual costing and multi-valuation.

  • Asset Accounting: Handling the elimination of delta depreciation areas.

Part IV: Post-Go-Live & Innovation (Tasks 66–75)

  • AI & Automation: How to immediately deploy Joule AI Agents and Insight Apps to prove ROI to stakeholders.

  • Optimization: Continuous review steps to ensure you aren't just running "ECC on HANA."

Why ERPfixers?

We Bridge the Gap Between IT and Finance. A successful conversion requires more than just technical execution; it requires functional precision. ERPfixers is led by industry authorities like Paul Ovigele, author of Introducing Material Ledger in S/4HANA.

We don't just help you "get to the cloud." We ensure that when you arrive, your financial data is accurate, your custom code is clean, and your system is ready for the future.

Secure your migration plan today.