# CONFLICT — 409 Conflict

# 409 Conflict

A conflicting operation has already occurred.

## Category

`conflict`

## Retryable?

**No.** The operation has already been completed.

## Common Error Codes

| Code | Description | Action |
|---|---|---|
| `ORDER_ALREADY_PLACED` | Order token was already used | This order was already placed — do not retry |

## Example

```json
{
  "type": "https://developer.gett-tech.com/errors/ORDER_ALREADY_PLACED",
  "title": "Conflict",
  "status": 409,
  "detail": "This order has already been placed.",
  "instance": "/v1/marketfront/orders/place",
  "requestId": "req_abc123",
  "timestamp": "2026-03-11T14:30:00.000Z",
  "errorCode": "ORDER_ALREADY_PLACED",
  "errorCategory": "conflict",
  "retryable": false
}
```