Final answer:
A new ticket should be created if the issue reoccurs after the original has been closed or resolved; otherwise, update the existing open ticket.
Step-by-step explanation:
In the context of issue tracking or helpdesk support, a new ticket should generally be created for an issue if the existing ticket has been closed or resolved, and the issue has recurred. This helps maintain clear and organized records, ensuring that each instance of an issue is properly handled and documented. However, if an existing ticket is open and the issue is ongoing, it is typically more efficient to update the existing ticket with new information rather than creating a new one. This prevents duplication and keeps all relevant information in one place. It is important for support teams to maintain effective communication and documentation to provide the best support possible to end-users or clients.