Hello Hello, I am working on migrating a small church and school library from a library system named Resource Mate (http://www.resourcemate.com/) to a Koha library system. I have been able to move all patrons and MARC records of the library books into Koha but I have not been able to move the barcodes for the books into the Koha system in a way that would allow books to be checked in and out by using the barcodes. To migrate the library from Resource Mate to Koha: I used Resource Mate's .CSV export tool in order to get a list of the patrons and book records. Next I used the handy "MarcEdit by Terry Reese" tool to convert the .CSV format of the records into a.MRK file for importing. Using the MarcEdit tool I mapped the barcodes for the books on the .CSV file to the MARC 952$p field in order to get the barcodes into a database within the Koha system. I was then able to import all of the patrons and records into the Koha system and verify a checkout process. At this point, I can successfully check books in and out but I am not able to use the barcodes of the books to assist in the checkout process. I believe this is related to the Koha to Marc mappings, as it appears the 952$p field is not being mapped to the Koha items table. I was able to find a document in the Koha wiki which explains the "As of *3.4.x*, holdings data is no longer stored in a 952 field and that information is introduced in the *items* table only" http://wiki.koha-community.org/wiki/Holdings_data_fields_%289xx%29 I am hoping for any suggestions on how to approach loading the book records barcodes into the correct field so that Koha will reference the data during check out. Thank you for any direction you can provide, Peter Reno