https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=21264 --- Comment #2 from Victor Grousset/tuxayo <victor.grousset@biblibre.com> --- This issue is one of the causes of having invalid itype on items. So it would help having directly the root cause. We use a check for that: https://git.biblibre.com/biblibre/tools/src/commit/da516fdcd8a367047e1a5e5bd... The important par is this one: if [[ "$itype_on_item" ]] && # the syspref [[ "$makePreviousSerialAvailable" ]] && # another syspref [[ "$invalid_itemtypes_exists" || # subscription.itemtype "$invalid_previousitemtypes_exists" ]] # subscription.previousitemtype -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes.