# idempotency_key_in_use

A request with this Idempotency-Key is still being processed.

## What it means

You sent a request with an `Idempotency-Key` while an earlier request with the same key is still running. We refuse the second one rather than run it twice.

## Why it happens

- A client retried on its own timeout before the first request finished.
- Two workers picked up the same job and used the same key.

## What to do

1. Wait a moment and retry with the same key: you get the first request's response once it has finished.
2. Keys are remembered for 24 hours.

- [Open the dashboard](/app/domains)
- [All limits](/docs/limits-and-pricing)

## In the API

```
HTTP 409

{
  "error": {
    "code": "idempotency_key_in_use",
    "message": "A request with this Idempotency-Key is still being processed.",
    "fix": "Wait for the first request to finish, then retry with the same key.",
    "docs": "https://apexly.dev/docs/errors/idempotency_key_in_use"
  }
}
```