I only want to delete attachments and not the ticket. How do I delete attachments without deleting the ticket?
For tickets in a Closed status, you cannot remove attachments from tickets. Instead, you can permanently delete the ticket.
Note: If you have custom ticket statuses enabled, tickets retain their custom ticket status even after they are Closed. For more information, see the section: Solving a ticket with a custom status.
For more information about ticket attachments, see the article: Enabling attachments in tickets.