Hello For a dev I am trying to write, I need a sub returning all the orders (or ordernumbers) linked to a specific biblionumber. Do you know if there is something like that in C4? Regards, M. Saby Rennes 2 university -- Mathieu Saby Service d'Informatique Documentaire Service Commun de la Documentation Université Rennes 2 Téléphone : 02 99 14 12 65 Courriel : mathieu.saby@univ-rennes2.fr