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Author's profile photo Shaji Narayanan

Upgrade to SAP S/4HANA 1909 – Lessons Learned


In late 2019, we performed an upgrade of S/4HANA from 1809 to 1909 for a major international CPG client.

Here is a quick post to capture the Lessons Learned from technical perspective.

# Lessons Learned When to Act? Comments
1 Ensure to check compatibility of installed add-ons. Before upgrade
  • Refer SAP OSS note 2214409.
  • Some of the add-ons installed were not compatible with 1909 and we had to remove them.
2 Ensure to review and act on unused ABAP objects Before upgrade
  • Review and Remove temporary tables.
  • Remove or activate inactive objects.
  • Delete $TMP objects which are not in use or inactivated.
3 Refresh SAPUI5 Extended apps manifest.json files. Before (& after)
  • Refer SAP online help.
  • Copy the “sap.ui5” and “sap.fiori” sections of the original manifest.json to the manifest.json of your new extended project.
4 Ensure to perform  BASIS activities Before upgrade
  • Clean-up data extractor queues.
  • Remove old update entries (t-code SM13).
  • Deactivate SLT replication during the upgrade window.
5 Avoid error on “objects found without delivery transport”. During upgrade
  • Refer SAP OSS note 2408272 for resolution steps. 
6 Prevent Product Hierarchy data loss. During upgrade
  • Refer SAP notes 927249 and 664860 for resolution steps.

Of course, this post is not a one-stop place for 1909 upgrade.

You still need to go through the standard documents and usual activities.

The main ones are:

Wish you all the very best for your S/4HANA and 1909 journey!

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      Author's profile photo Ahmad Quraishi
      Ahmad Quraishi


      Author's profile photo Gamma S
      Gamma S

      Thanks! Great Sharing!

      Author's profile photo Charles Kaberia
      Charles Kaberia

      For those using embedded Fiori, you will need to rebuild or refresh the caches, also this note is recommended after upgrade 2319491