The purpose of this blog is to help consultant in preparing the landscape for S/4HANA conversion. We distributed activities in three phase and every phase have sub activities.
Also Read: SAP S/4HANA Conversion and SAP System Upgrade Certification Preparation Guide
- Preparation
- Realization
- Post step
Preparation Phase
- Sizing
- SI Check or SAP Readiness check (Solution Manager Required)
- Remove Client 066
- Uninstall Fiori Apps
- Maintenance planner
Sizing
Run transaction SE38 and execute the program /SDF/HDB_SIZING in the production system
Select Perform Sizing of S/4HANA and HANA 2.0 for S/4HANA 1909
Click on Execute Button
SI-Check or SAP Readiness check (Solution Manager Required)
Run transaction SE38 and execute the program /SDF/RC_START_CHECK in the production system
Select SAPS/4HANA 1909
Remove Client 066
Client 066 is the Early Watch client which was set up during the installation of your system. This client is not used in SAP S/4HANA. To prevent issues, for example, with job scheduling, you have to remove it before starting the conversion.
Remove client 066, proceed as described in SAP Note 1749142
Run T-Code SCC5 for client deletion
Uninstall Fiori Apps
If you have SAP Fiori apps installed locally on your source system, you need to uninstall them if they are not released for USER INTERFACE TECHNOLOGY 7.50 (SAP_UI 7.50). If you do not uninstall these apps, the
Check SAP Note 2034588 for a list of apps that you need to uninstall as per your landscape
Maintenance planner
Please use Maintenance planner for calculate stack.xml file
Realization Phase
Conversion using SUM
Software Update Manager (SUM) is the technical tool used for the system conversion to SAP S/4HANA. Latest version is SUM 2.0 SP08 and SAP Note is 2832350
Extraction Phase
Click On Next
Select Compare the Content of all tables and generate migration key on SAP portal and provide here and click on next
Click On Next
Configuration Phase
Click on Next
Please provide language media
Implement these note in your system
Click on next
Click on next
Click on next
Check Phase
Preprocessing phase
Click On Next
Drop mail to ABAP Team for SPDD activity once they will confirm that the activity is completed then click on next
Click On next
Click on Next once above written activity will complete.
Take complete Full Backup of DB as well complete Backup of SUM directory then click on next
Preprocessing phase got completed
Execution Phase
Click on Next
Postprocessing Phase
Click On Next
Click On Next
Post Step Phase
- Release suspended batch jobs, program BRCTRNS2
- Confirm new WF user is SAP_WFRT not WF-BATCH
- Review Workflow Configuration
- Activate business functions for Fiori: FIN_FSCM_CLM, FIN_FSCM_BNK, FIN_REP_SIMPL_2,FIN_REP_SIMPL3, FIN_REP_SIMPL4, FIN_LOC_SRF
- Execute SGEN
- Check HANA Log Mode – Change if necessary; undo parameter changes from FI data migration.
- Monitor ST22 and fix any ABAP dumps
- Review certificates pertaining to SSO, PSE regeneration if needed
- SSL certificates to use SAN (Subject Alternative Name) for Google Chrome Note 2725592
- Update NW kernel patch if required
- Implement SAP Note 2606478 REGENERATE_SAP_NEW, then, run the report
