https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=22291 --- Comment #1 from Barton Chittenden <barton@bywatersolutions.com> --- Note that even though the query that I used to illustrate this problem won't ever occur in production, this was triggered by a real report, that looked something like this: SELECT aqbasket.basketname, aqbasket.closedate, aqorders.biblionumber, aqorders_items.itemnumber, items.itemnumber AS 'items.itemnumber', biblio.title, items.barcode FROM aqbasket LEFT JOIN aqorders USING (basketno) LEFT JOIN aqorders_items on (aqorders.ordernumber = aqorders_items.ordernumber) LEFT JOIN biblio on (aqorders.biblionumber = biblio.biblionumber) LEFT JOIN items on (aqorders_items.itemnumber = items.itemnumber) WHERE aqbasket.basketname='XXXXXXXXXXXXXX' GROUP BY aqorders_items.itemnumber The 'Batch Modify' button was attached to the 'aqorders_items.itemnumber' column, and there were instances where that was populated, even when 'items.itemnumber' was NULL. -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes.