Dear Koha developers, I would like to know about how to convert MS-SQL database of catalog into Koha database and others. I don't following issues; - existed Bar codes of multi-copies of one book in library and branch libraries that which field of Koha-mysql. which way best solutions or check lists to import to koha database - Anyone experiece about how to create or best way Koha call numbers for books and other collections. We have only same numbers for each collection for english and russian etc on previous official record. Many thanks, Gana