You can change the card number and it doesn't affect anything. When I set up Koha for our library five years ago, I uploaded a list of all the employees, using their employee ID number as their card number. About a week or two later the hospital introduced a system-wide ID scheme and everybody got a new employee number. When someone comes to check out a book, if they have the old number we change it. Or maybe we don't. Right now our card numbers are a mixture of old IDs, new IDs, and sometimes we use phone numbers if a rotating resident needs a book and she doesn't have an ID number. Obviously, our small library can be a lot less formal than most, but the gist of it is that Koha assigns internally-calculated numbers to patrons and the library card number can be anything you want it to be, including changed as you need it. BTW, I set up Koha 3.12. I believe it was the very afternoon of the day we went live that 3.14 came out. Oh well... Fred King Medical Librarian, MedStar Washington Hospital Center fred.king@medstar.net 202-877-6670 ORCID 0000-0001-5266-0279 MedStar Authors Catalog: http://medstarauthors.org Honey, courage is just a lack of options. --Fannie Lou Hamer -----Original Message----- From: Koha [mailto:koha-bounces@lists.katipo.co.nz] On Behalf Of takan bhatt Sent: Thursday, December 06, 2018 11:25 AM To: koha Subject: [Koha] Change in card number ** ATTENTION: This email originated from outside the MedStar network. ** DO NOT CLICK links or attachments unless you recognize the sender and know the content is safe. Hi Friends, As our university assigning enrollment numbers after 3 months of actual admission. Meanwhile, we have to create patron card number either temporary or using other scheme. Can I change card number later ? Is it effect history of old issue return record ? Pls guide me. Rajesh Bhatt Librarian, GRIMS Vapi India WhatsApp #+919824925609 _______________________________________________ Koha mailing list https://urldefense.proofpoint.com/v2/url?u=http-3A__koha-2Dcommunity.org&d=DwIGaQ&c=RvBXVp2Kc-itN3g6r3sN0QK_zL4whPpndVxj8-bJ04M&r=vKh6XwOmjyC51IkP1OfsdjQZoWT2vpi6VZl8El8EPRI&m=hh4z_g86zxmxrbyxwdwqqbSimX2oilNvEojlMX5DN70&s=r0Yd689hJFWQELFWsUeEXjSOMz1rmGjJCPXNWgz1Tdk&e= Koha@lists.katipo.co.nz https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.katipo.co.nz_mailman_listinfo_koha&d=DwIGaQ&c=RvBXVp2Kc-itN3g6r3sN0QK_zL4whPpndVxj8-bJ04M&r=vKh6XwOmjyC51IkP1OfsdjQZoWT2vpi6VZl8El8EPRI&m=hh4z_g86zxmxrbyxwdwqqbSimX2oilNvEojlMX5DN70&s=TAVTT-sXjBVRs84uRnaU8a9giZSdAv1mFAgTObvQhvk&e=