Translate

My SAP ECC to S/4HANA Conversion Journey: What Worked, What Broke, and What I’d Do Differently

 When our company finally committed to converting from ECC to S/4HANA, I was both excited and terrified. This post is a full breakdown of our conversion experience — from planning to go-live — with honest insights into what went smoothly and what nearly derailed us.

Subtopics & Answers:

  • Why we chose system conversion over new implementation We had years of custom development and master data we couldn’t afford to rebuild.

  • Pre-checks and readiness assessment Using SAP Readiness Check helped us identify incompatible add-ons and obsolete transactions.

  • Key technical steps in the conversion SUM tool, database migration to HANA, and custom code remediation — I explain each phase.

  • Challenges we faced Unicode conversion, downtime planning, and adapting to Fiori apps.

  • Post-conversion stabilization Performance tuning, user training, and fixing broken interfaces.

  • Lessons learned and advice for others Start early, document everything, and don’t underestimate te

No comments:

Labels

sap hana hana database aws s4 hana hana db s4hana conversion steps sap hana azure bw4hana hana migration s4hana migration sap cloud migration steps sap hana migration steps sap hana migration to azure s4hana sap fiori fiori performance fiori erp s4 hana fiori sap fiori app sap fiori client sap fiori launchpad sap s4 hana fiori cisco ecc AI SAP AI abap dumps hana sap S/4HANA S/4HANA Conversion best sap ui5 & fiori training configuration database fiori tutorial on webide free sap ui5 & fiori training s/4 hana sap dumps sap fiori tutorial sap ui5 sap ui5 & fiori sap ui5 & fiori tutorial sara ui5cn 2367245 - Troubleshooting performance issues with SAP BPA Amazon free tier for SAP AWS setup Experience CALL_FUNCTION_NOT_FOUND CCMS Configuration and Use Create New Data Class in SAP (Oracle) Critical top SAP Abap dumps DHCP Clients Not Receiving IP Addresses Download Stack.xml HAN-DB HAN-DB-ENG High CPU Usage Due to Excessive Process Switching How To How to Start and Stop SAP Hana Tenant Database How to change SAP Hana Sql Output results are limited to 5000 Records How to perform SAP Dual Stack Split - Netweaver Inactive Objects in SAP Intercompany transactions in SAP AP / AR : Cross Company Code Transaction Interface Flapping Due to Duplex Mismatch KBA LOAD_PROGRAM_LOST MSSQL shrinking transaction log file Migrating to SAP hana database NAT Overload Causing Internet Access Failure Note 500235 - Network Diagnosis with NIPING OSPF Adjacency Not Forming PRINCE2 Foundation Sample Questions Preparing for S/4HANA Conversion and the MUST know items Push to Download Basket S/4HANA Migration Cockpit S/4JANA SAP BI Support Data Load Errors and Solutions SAP BI/BW Landscape SAP BPA SAP Basis SAP Basis Automation SAP Business Objects SAP CPS SAP Certification SAP FI Certification SAP FI Certification Sample Questions SAP HANA Admin - Cockpit SAP HANA DB Engines SAP HANA Database SAP HANA terminate session connection disconnect cancel kill hang stuck SAP Hana DB restore SAP Hana Numeric Error Codes SAP Landscape SAP Language installation SAP MM and Purchase Order Tables SAP Maintenance Planner SAP Note 500235 SAP R/3 Glossary SAP Readiness Check SAP S/4HANA 1709 Installation Files SAP S/4HANA 2023 SAP S/4HANA 2023 Installation SAP S/4HANA 2023 running SAP S/4HANA Installation SAP Scheduling SAP Solman 7.2 CHARM: SAP Support Package Stack Strategy SAP Support package SAP Upgrade SAP support stack upgrade SP stacks STORAGE_PARAMETERS_WRONG_SET SUSE/SLES/Kernel versions Setup of S/4hana 2023 TSV_TNEW_PAGE_ALLOC_FAILED TSV_TNEW_PAGE_ALLOC_FAILED error Transaction ID Unable to download an SAP Note Unix/Linux Command That Are Helpful For SAP Basis Upgrading SAP Kernel Without Downtime Upgrading windows server 2008 to windows server 2019 What is OSS Notes? SAP SNOTE Tutorial accounting agile ale idoc ale/edi archive FI documents audit auditing auditor aws aws cloud basic type bluefield approach ccms ccmsidb charm copilot datavard dbacockpit download sap note download snote edi idoc electronic data interchange enable sap archiving objects erpprep ffid firefighter fraud functional hana admin how to apply sap security note https://www.erpprep.com/ idoc install install sap fiori installation interfaces intermediate document internal control license key linux version materials management messsage niping test order type port prince2 agile prince2 agile practitioner purchasing quick info s4 hana sap abap dumps sap abbreviations sap activate certification sap activate project manager sap authorization sap aws sap brownfield sap ccms sap ccms configuration sap erp sap error sap grc sap greenfield sap internet demo system sap license sap maintenance certificate sap material management sap meaning sap mm sap mm consultant sap monthly security note sap netweaver sap network diagnostic sap niping sap note sap oss sap patch day sap performance sap performance issue sap purchase order sap s/4hana sap sales and distribution sap sap otc sap sd sap sd certification training sap sd course sap sd jobs sap sd module sap sd online training sap sd training sap sd tutorial sap sd tutorial for beginners sap security sap security note sap snote sap snote tutorial sap solution manager sap sql segregation of duties separation of duties sles slicense smc snote snote in sap system sod conflict solution manager solution maneger stop start hana database suse linux techie trex two step upgrade required waterfall