[Michlib-l] Ideas/Advice for Adding Local Holdings Missed by Migration?

Hello all, My library migrated from Koha to OCLC WorldShare in August 2022, and it missed or excluded much of our print local holdings. The previous records are gone, so there's no recovering that. Has this happened to anybody else, and in your experience, is there a way to add your excluded local holdings without having to do an item-by-item manual add? That's what we've been doing since this was discovered in fall 2022 and we're nowhere near completion. Thanks for any and all words of advice! Josh Olsen (he/him) Director of Library Services Madonna University jolsen@madonna.edu 734-432-5684