I am using ACL to create a workflow and it goes like: # ticket acl $Self->{TicketAcl}->{'103-limit103-ACL'} = { # match properties Properties => { # current ticket match properties Ticket => { Queue => ['Purchases::Store Section'], } }, # return possible options (white list) Possible => { # possible ticket options (white list) Ticket => { Queue => ['Purchases::IT Area'], }, }, }; But when an agent tries to move a ticket into the queue 'Purchases::Store Section' we get a bug failure with error message '?.' When the admin moves ticket in the same queue it works though. Thanks for helping out. This e-mail and any file transmitted with it are confidential and are intended solely for the use of individual or entity to which they are addressed. If you are not the intended recipient you are notified that disclosing, copying, distributing, or taking any action in reliance on the contents of this email is strictly prohibited. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the company. Finally the recipient should check this email and any attachments for the presence of viruses. Any company forming part of the MCB Group shall accept no liability for any damage caused by any virus transmitted by this email. In accordance with the companies forming part of the MCB Group, electronic mail policy, email sent or received may be monitored.