We'd love to see an API flag added for 'open ticket' and 'reply ticket' functions that supports attachments that can be sent through to WHMCS.
Attachments in Open Ticket and Reply Ticket API
how to send ATTACHMENTS in Open Ticket and Reply Ticket API . This is required to create and reply to whmcs tickets using API . I couldn't see this in : http://docs.whmcs.com/API:Open_Tickethttp://docs.whmcs.com/API:Reply_Ticket