> For the complete documentation index, see [llms.txt](https://developer.paddle.com/llms.txt).

# Unknown entity

The entity you're querying isn't a recognized queryable metric.

---

## Example

```json
{
  "error": {
    "type": "request_error",
    "code": "unknown_entity",
    "detail": "The entity 'transactions.completed' is not recognized.",
    "documentation_url": "https://developer.paddle.com/errors/metrics/unknown_entity"
  },
  "meta": {
    "request_id": "00000000-0000-0000-0000-000000000000"
  }
}
```

## Details

| Attribute | Value |
| --- | --- |
| Status code | 400 |
| Error code | `unknown_entity` |
| Error message | The entity '%s' is not recognized. |

## Common causes

- The `entity` in your request doesn't match a queryable metric.
- There's a typo in the entity name.

## Common solutions

- Call [list Explore metric entities](https://developer.paddle.com/api-reference/metrics/list-explore-metric-entities) without the `entity` query parameter and use one of the entity names it returns.
- Confirm the spelling of the `entity` query parameter.