https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=38143 --- Comment #2 from Esther Melander <esther.melander@bywatersolutions.com> --- According to the manual: "For example, a Dewey call number such as ‘636.8/07 SHAW’ will become ‘636_800000000000000_07_SHAW’ in order to be sorted." And: The Dewey filing routine generates a sorted call number by following these rules: - Concatenates classification and item parts. - Converts to uppercase. - Removes any leading or trailing white spaces, and forward slashes (/) - Separates alphabetic prefix from the rest of the call number - Splits into tokens on white spaces and periods. - Leaves first digit group as is. - Converts second digit group to 15-digit long group, padded on right with zeroes. - Converts each whitespace to an underscore. - Removes any remaining non-alphabetical, non-numeric, non-underscore characters. Since the custom classification source used the dewey filing rule and the cn_sort was incorrect, it feels like a bug. -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes.