# `TICKET_CLOSED` Ticket is closed

Source: https://checkslip.com/en/problems/ticket-closed

- **HTTP status**: `409`
- **Credit**: No credit taken

## Meaning

You cannot add messages to a closed ticket.

## Fix

Reopen it (`POST /api/tickets/{ticket_id}/reopen`) while before `reopen_until`, or open a new ticket with `related_ticket_id` set to this one.

## Example response

```
{
  "type": "https://checkslip.com/problems/ticket-closed",
  "title": "Ticket is closed",
  "status": 409,
  "code": "TICKET_CLOSED",
  "instance": "01a18600-0000-7000-8000-000000000000"
}
```