Hello, all! I have been asked to add a new indexed item field (subfield, that is). Here's the story. My library keeps track of its acquisitions in an old Access database. Each acquisition is given a unique ID number consisting of two parts: the year of acquisition and its sequence in the acquisition scheme for the year. <acquisition year>-<sequence number> For example the acquisition number of *A dictionary of Japanese and English idiomatic equivalents*, ISBN 0870111116, c. 1, is 1986-1003. The acquisition number of the same title, c. 2, ordered in the same batch as c. 1, is 1986-1003. This means, as you might already induce, that in 1986, c. 1 and c. 2 were the 1003rd books ordered. A third copy ordered later in the year would get the acquisition number 1986-1657. If a fourth copy is ordered in two years, it might get acquisition number 1988-0384; meaning it was the 384th work ordered in 1988. I am building a Koha catalog this library's from a spreadsheet and Access database, I have been asked to preserve this acquisition number. It is very important to the staff, and I am too new to challenge the staff about it. I am confident that in a few years, we'll have a better different system in operation; but for the present, I think I ought to keep it. Well, I can insert the number into the 952$e field. I could repurposed the 952$k field since that field is not in use. If I do the former (952$e), I can rely on the regular Koha indexing handle the number, the indexing, and so on. If I do the latter (952$k), I have to create and build a new index;* and I run the risk that Koha will dedicate 952$k to a function in the future. Have libraries in this discussion list done 952$e? Have libraries in this discussion list done $952$k? Is there an alternative solution? Abandoning the porting is not, at this stage, an option although I concede that in the future, we will likely end up dropping this version of the acquisition number. * I have read the sections on building an index on the Koha wiki. Thanks for your help, everyone. -- -- Charles. Charles Kelley, MLS PSC 704 Box 1029 APO AP 96338 Charles Kelley 1-5-2 Tsukimino #210 Yamato-shi, Kanagawa-ken, 〒242-0002 JAPAN 1-301-741-7122 [US cell] 011-81-80-4714-5490 [JPN cell] mnogojazyk@aol.com [h] cmkelleymls@gmail.com [p] linkedin.com/in/cmkelleymls <http://www.linkedin.com/in/cmkelleymls> Meeting Your Information Needs. Virtually.