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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.

  1. Preparation

  2. Realization

  3. Post step


Preparation Phase 

  1. Sizing

  2. SI Check or SAP Readiness check (Solution Manager Required)

  3. Remove Client 066

  4. Uninstall Fiori Apps

  5. 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 .For more information, see the Maintenance Planner User Guide at http://help.sap.com/maintenanceplanner


 

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 follow the sap note for allocation of process https://launchpad.support.sap.com/#/notes/1616401


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 

  1. Release suspended batch jobs, program BRCTRNS2

  2. Confirm new WF user is SAP_WFRT not WF-BATCH

  3. Review Workflow Configuration

  4. Activate business functions for Fiori: FIN_FSCM_CLM, FIN_FSCM_BNK, FIN_REP_SIMPL_2,FIN_REP_SIMPL3, FIN_REP_SIMPL4, FIN_LOC_SRF

  5. Execute SGEN

  6. Check HANA Log Mode – Change if necessary; undo parameter changes from FI data migration.

  7. Monitor ST22 and fix any ABAP dumps

  8. Review certificates pertaining to SSO, PSE regeneration if needed

  9. SSL certificates to use SAN (Subject Alternative Name) for Google Chrome Note 2725592

  10. Update NW kernel patch if required

  11. Implement SAP Note 2606478 REGENERATE_SAP_NEW, then, run the report


Conclusion 

In order to make your S/4HANA Project successfully . Please follow each steps carefully and kindly follow  S/4HANA Conversion guide. https://help.sap.com/viewer/product/SAP_S4HANA_ON-PREMISE/1909/en-US?task=discover_task.

  1. Perform Sizing Activity using sizing report (Note 1872170)

  2. Start running the Simplification Item Check and fixing the issues found by the checks as early as possible in your project

  3. Calculate stack file using Maintenance Planner

  4. Remove 066 client and Fiori apps as per sap note (2034588)

  5. Execute Software Update Manager (SUM)

  6. Perform Post step


 
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