# Idempotency-Key reused with different parameters

> idempotency-key-reused: HTTP 409. Use a new Idempotency-Key for a different request; reuse a key only to retry.

Source: https://emailmovers.com/mydatahub/docs/errors/idempotency-key-reused

`idempotency-key-reused` is returned with HTTP status 409. Its type URI is `https://emailmovers.com/mydatahub/docs/errors/idempotency-key-reused`.

## What it means

The Idempotency-Key was used before with different parameters. Reuse a key only to retry the same request.

## What to do

Use a new Idempotency-Key for a different request; reuse a key only to retry.

## Example

```json
{
  "type": "https://emailmovers.com/mydatahub/docs/errors/idempotency-key-reused",
  "title": "Idempotency-Key reused with different parameters",
  "status": 409,
  "code": "idempotency-key-reused",
  "detail": "This Idempotency-Key belongs to a different request.",
  "next_step": "Use a new Idempotency-Key for a different request; reuse a key only to retry."
}
```

## See also

- [Quotes and orders](https://emailmovers.com/mydatahub/docs/quotes-and-orders.md)

All problem types are listed on [Errors](https://emailmovers.com/mydatahub/docs/errors.md).