The following document describes the steps taken for an upgrade to SAP S/4HANA 1909. The source system is our internal RIG test system which was on SAP S/4HANA 1809 with embedded Fiori Front End Server.
The RIG document is available for download here: SAP S/4HANA 1909 Upgrade
The document includes:
- Steps for Maintenance Planner to generate the stack.xml and planning steps.
- SUM tool screenshots of each steps along with additional notes and comments we have encountered in our test system.
We upgraded our HDB 2.0 to the latest revision at the time, which was REV 43. Also, we used SUM Tool version 2.0 SP 6 Patch Level 2
Longest steps in Downtime = ~ 5 hours in TABIM_UPG and XPRAS
This guide is a reference along with the more detailed Upgrade Guide to SAP S/4HANA 1909 on premise. Please read both guides before starting your upgrade journey as your system and environment are different.
For planning a system conversion to SAP S/4HANA, please refer to this blog for a great technical overview by our RIG team.