http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=12225 --- Comment #2 from Colin Campbell <colin.campbell@ptfs-europe.com> --- There are a number of bugs meaning that Koha does not implement no_block handling although some of the ILS routines appear to handle it. The formats parsing fixed fields are incorrect for single character flags such as no_block In the template they are defined as C which does not return a single character string but the integer value of that octet so where the code tests if ($no_block eq 'Y') that always fails because no_block == 89 If you fix the above issuing a non_block checkout calls a method checkout_no_block unfortunately no such method is present and the SIPServer instance crashes Will try fixing these and testing if we can then get the correct behaviour -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes.