S/4 -> S/4 System upgrade – Are there “best practices”?

Yes.
Performing an S/4 to S/4 upgrade while retaining QuantityWare BCS is a simple task as described in the FAQ “S/4 -> S/4 System Upgrade – Technical procedure“. However, are there any “best practices” to be considered from the application perspective?

Before upgrade:

• Check that all available QuantityWare (QW) notes are installed – see Note 000067. If not, install
• Run the QuantityWare Installation Test (see PAIG chapter 5.1) in your reference client to see if current the installation is consistent from a QW-delivery perspective
• Run all customer test scenarios to check if the configuration in all clients / systems in which QW is active and being used (e.g. DEV, CON, PRD, etc.) is consistent and working as expected
  (NOTE: If there are none – now is the time to create some, see this FAQ for more details)

After upgrade:

• Run the installation test check to see if the current installation is still consistent from a QW-delivery perspective
• Run all customer test scenarios that exist to check if the configuration in all clients / systems in which QW is active and being used (e.g. DEV, CON, PRD, etc.) is consistent and working as expected

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