I hope this email finds you well. My name is Ali, and I work for a university based in Kenya. Recently, I installed KOHA ILS for our university library. During the setup of our bibliographic data, I converted our records into MARC format and uploaded them to the system. Unfortunately, I realized I made some mistakes when creating the MARC records. In my efforts to resolve the issue, I followed the instructions from the following link on how to delete all records while keeping the settings intact. https://wiki.koha-community.org/wiki/How_to_delete_all_records_and_keep_sett... Specifically, I truncated all the tables except for the borrowers table. After correcting the MARC records, I re-uploaded the bibliographic data. The system accepted the updates, and the data appeared to be fine. However, I have encountered a problem when searching for any book via the staff interface. I see two entries for each bookâone from the old incorrect data and one with the new corrected data. Clicking on the old entries results in an error message indicating that the item is not found. On the OPAC side, the search results appear to be correct with no duplicates. Could you please advise on how to resolve this issue? Any assistance you can provide would be greatly appreciated. Thank you for your time and support. Best regards, Aliasgar I Badri IT Department Aljamea tus Safiyah -- Aliasgar I Badri IT Department Aljamea tus Safiyah