Further to what @[deleted] offered...As you already know, a client can open a ticket by going to the Support Portal > Open a Ticket. They don't need to have an existing account to do so.As @[deleted] pointed out, they can later view a single ticket by entering their email address and the ticket #.When an agent receives a new ticket from an unregistered user, they will assign it to an account (or create a new account if one doesn't already exist for the client).An account will show up as "Guest" until the client is registered with a username and password.When the client has a registered account he/she can view lists of all of their open and closed tickets.What you may not realize is that a client can register for an account themselves by going to Support Portal > Sign In > Account Registration.Additionally, rather than waiting for the client to register themselves, an agent can initiate the process by going to the Staff Panel > Users > (username) > More > Account Activation Link. This will send an email to the user to walk them through the registration process.