Can SAP Patches be installed when other users are online?

Answer Posted / jaya

Answer is a big NO.

SAP patches internally are changing the underneath code in
the application table level. If you understand what a patch
is doing and what it is actually then you will know
wheather to apply it on now.

SAP patches, especially SAP_BASIS/ SAP_ABA patches use the
DDIC and repository so, you need to lock the user IDs on
the system. Or the users might get dumps, and you will
endup restoring the complete system.

Thanks

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