Sachin H. PatilSAP Knowledge + AI Lab
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Consultant playbook · S/4HANA 2025

S/4HANA 2025 Conversion and Upgrade

One place to work from on an SAP S/4HANA 2025 project, whether you are converting SAP ERP with IS-U or upgrading an earlier S/4HANA release. SAP Utilities and FI-CA are the specialist focus. Find your phase on the map, or follow the path for your role.

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Journey map

Where are you in the project?

Rows are workstreams, columns are SAP Activate phases. A page can sit in more than one phase.

WorkstreamDiscoverPrepareExploreRealizeDeployRun
Strategy and business caseThe case for S/4HANA 2025 and the choice of path. No pages published yet.
Track A · System conversionMoving from SAP ERP with IS-U to S/4HANA 2025. No pages published yet.
Track B · Release upgradeMoving from an earlier S/4HANA release to 2025. Before an S/4HANA 2025 Upgrade: 8 Fiori and Scope Decisions to Close FirstIn reviewBefore an S/4HANA 2025 Upgrade: 8 Fiori and Scope Decisions to Close FirstIn review
Utilities transformationSAP Utilities processes on the path to S/4HANA 2025. No pages published yet.
FI-CA transformationContract accounting and Convergent Invoicing on the path to S/4HANA 2025. No pages published yet.
Fiori apps, roles and launchpadThe S/4HANA 2025 Fiori app population, roles and the launchpad. Deprecated and Successor Fiori Apps in S/4HANA 2025: What to Keep, Replace or RetireIn reviewFI-CA and Convergent Invoicing Fiori Apps in S/4HANA 2025: 72 Apps by TaskIn reviewReading the Fiori 2025 App List Correctly: 14 Corrections That Change Upgrade ScopeIn reviewSAP Utilities Fiori Apps in S/4HANA 2025: The 20 IS-U Apps by ProcessIn reviewTransaction Code to Fiori App Lookup for SAP Utilities and FI-CA (S/4HANA 2025)In reviewCore ERP Fiori Apps a Utilities Project Still Needs in S/4HANA 2025In reviewDeprecated and Successor Fiori Apps in S/4HANA 2025: What to Keep, Replace or RetireIn reviewFI-CA and Convergent Invoicing Fiori Apps in S/4HANA 2025: 72 Apps by TaskIn reviewSAP Utilities Fiori Apps in S/4HANA 2025: The 20 IS-U Apps by ProcessIn reviewTransaction Code to Fiori App Lookup for SAP Utilities and FI-CA (S/4HANA 2025)In reviewDeprecated and Successor Fiori Apps in S/4HANA 2025: What to Keep, Replace or RetireIn review
Clean core and technical debtCustom code and extensibility on the path to S/4HANA 2025. A Fiori Elements App Is Not a Clean Core: Separating UI Technology from ExtensibilityIn reviewA Fiori Elements App Is Not a Clean Core: Separating UI Technology from ExtensibilityIn reviewA Fiori Elements App Is Not a Clean Core: Separating UI Technology from ExtensibilityIn review
AI and JouleSAP AI and Joule capability claims, and the evidence they need. “SAP Fiori Elements for CoPilot” Is Not Joule: How to Verify AI Capability ClaimsIn review“SAP Fiori Elements for CoPilot” Is Not Joule: How to Verify AI Capability ClaimsIn review
Testing, cutover and hypercareValidating an S/4HANA 2025 go-live, and the period after it. S/4HANA 2025 Cutover Validation for SAP Utilities and FI-CA: What to Test SeparatelyIn reviewAfter Go-Live: Measuring Fiori Adoption and Retiring GUI Fallback SafelyIn reviewS/4HANA 2025 Cutover Validation for SAP Utilities and FI-CA: What to Test SeparatelyIn reviewAfter Go-Live: Measuring Fiori Adoption and Retiring GUI Fallback SafelyIn review
Reading paths

Follow the path for your role

4 pages, ~17 min

Reading Path: ABAP and Clean Core Lead

Start the path →
5 pages, ~29 min

Reading Path: FI-CA and Convergent Invoicing Consultant

Start the path →
7 pages, ~52 min

Reading Path: Fiori and Security Lead

Start the path →
5 pages, ~21 min

Reading Path: SAP Utilities (IS-U) Functional Consultant

Start the path →
8 pages, ~49 min

Reading Path: Solution Architect on an S/4HANA 2025 Utilities Programme

Start the path →
4 pages, ~29 min

Reading Path: Test and Cutover Manager

Start the path →
Reference and templates

Sources, data quality and templates

Background

Earlier material

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