Feature Request Summary:
Make it possible to let end users edit their email subject.
Our partners are copying their reference in the subject of their email, using their email client. Zendesk however keeps the initial subject of the ticket and doesn't change the title of the outgoing message. Which causes their reference will be lost and they need to search a lot in their internal systems.
Business impact of limitation or missing feature:
Two of our main partners ( ± 30% of the tickets) are working this way. Other potential partners have the same way of getting their reference in email communication.