# `UNKNOWN_EVENT_TYPE` Unknown event type

Source: https://checkslip.com/en/problems/unknown-event-type

- **HTTP status**: `422`
- **Credit**: No credit taken

## Meaning

`event_types` has a value that is not in the list.

## Fix

See the subscribable types at `GET /api/webhooks/event-types`.

## Example response

```
{
  "type": "https://checkslip.com/problems/unknown-event-type",
  "title": "Unknown event type",
  "status": 422,
  "code": "UNKNOWN_EVENT_TYPE",
  "instance": "0192f3a4-7b1c-7d2e-8f30-4a5b6c7d8e9f"
}
```