# idempotency_in_progress

**The first request with this Idempotency-Key is still running.**

| | |
|---|---|
| HTTP status | `409` |
| `code` | `idempotency_in_progress` |
| Retry? | Yes, after a delay |

## What it means

You repeated a request while the first one is still being processed.

## How to fix it

Wait a moment and repeat the request. Once the first one is done you get its answer, with the header `Idempotent-Replayed: true`.

## Example

```json
{
  "type": "https://docs.kalender-sync.de/en/api/errors/idempotency_in_progress",
  "title": "Conflict",
  "status": 409,
  "code": "idempotency_in_progress",
  "detail": "A request with this Idempotency-Key is still running.",
  "request_id": "req_…"
}
```

→ [All error codes](https://docs.kalender-sync.de/en/api/errors/)