Great post Leonid! Could also be a pro-active approach for SAS admins to take to avoid SAS users getting the "Duplicate librefs detected" pop-up window. ;-)

I saw that you mentioned Metacoda Plug-ins in the additional resources - thanks for that. If a SAS administrator is not a programmer and has access to the Metacoda Library Reviewer, they can click on the LIBREF column heading and see the list of LIBREFs sorted alphabetically to identify the duplicates. https://platformadmin.com/blogs/paul/2022/03/metacoda-plug-ins-library-reviewer/

Cheers,
Michelle