SAP S/4HANA Administration · Software Maintenance: Updates, SPAM & Add-ons

SUM's near-zero-downtime scenario migrates data while users are still working. What technical mechanism makes that possible, and why is it usually applied to only a few tables?

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More in Software Maintenance: Updates, SPAM & Add-ons

If the archives are already in the download directory, why can't you just point SUM at them and skip the maintenance-planner stack XML?

Post-update you've run SPAU and SGEN. Which manual step is easy to forget, and what happens if you don't do it?

Why is SPAM entirely downtime, and when is choosing SPAM over SUM actually defensible?

Before running a SUM update you're tempted to skip updating SPAM. What breaks, and what else gets patched along with SPAM?

A newly installed, highly secure system has no Solution Manager backbone connection. Can you still plan its maintenance, and what's the one precondition?

You're updating one system in an MCOD setup and want to disable database archiving during downtime to reduce logging. Why can't you?

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