# AT_OUT_OF_RANGE: Not a point this ref can be read at

> The `at` parameter asks for a point in history the ref has not reached, or below zero, or was sent on a write, which always happens now.

Sent by the management API (400). The page: https://coho-cms.com/errors/at-out-of-range/

## What to do

Use a point from the ref's history, or leave `at` out to read its head.

## The response

```json
{
  "code": "AT_OUT_OF_RANGE",
  "type": "https://coho-cms.com/errors/at-out-of-range",
  "title": "Not a point this ref can be read at",
  "status": 400,
  "detail": "What went wrong in this request, in a sentence.",
  "instance": "/v1/projects/…"
}
```

Every error code: https://coho-cms.com/errors/