Dear List, We are running koha 16.05.02 on Debian from packages with Unimarc flavor. We usually create authorities by editing or creating biblio records. In system preferences, we have set both "AutoCreateAuthorities" and "BiblioAddsAuthorities" to "allow", while "CatalogModuleRelink", "LinkerKeepStale" and "LinkerRelink" to "do not". However, while editing a biblio record, if we enter a new authority (e.g. Plato, 427-347 BC – Criticism and interpretation [a.n.: ?]) that resembles an existing one (Plato, 427-347 BC [a.n.: 605]), koha links to the biblio record the existing authority (via its [a.n.] authority number), instead of creating a new one, and leaves the newly entered details in the biblio record, but with the old authority number (e.g. Plato, 427-347 BC – Criticism and interpretation [a.n.: 605]). To avoid this we are misspelling the new authority and correcting it afterwards. This of course is very confusing and time consuming. Any guidance would be very much appreciated. Kind regards, Andreas Roussos Systems Administrator Holy Monastery of the Paraclete