We are testing using the Cart functionality as we prepare to open the libraries again (looking to use a 72 hour quarantine) and are puzzled that only sometimes does the location change back from Cart to the former location which should be temporarily stored in the permanent_location field. Sometimes the reversion happens, sometimes the items stay at Cart, and sometimes (mostly!) the location left after the cart_to_shelf script runs is <undefined> and the data field is left empty. Anyone else finding this? (Every item in our database has the location data field populated.) Ray Delahunty University of the Arts London . This email and any attachments are intended solely for the addressee and may contain confidential information. If you are not the intended recipient of this email and/or its attachments you must not take any action based upon them and you must not copy or show them to anyone. Please send the email back to us and immediately and permanently delete it and its attachments. Where this email is unrelated to the business of University of the Arts London or of any of its group companies the opinions expressed in it are the opinions of the sender and do not necessarily constitute those of University of the Arts London (or the relevant group company). Where the sender's signature indicates that the email is sent on behalf of UAL Short Courses Limited the following also applies: UAL Short Courses Limited is a company registered in England and Wales under company number 02361261. Registered Office: University of the Arts London, 272 High Holborn, London WC1V 7EY