# before_history

History unavailable. HTTP 422.

## What it means

Records are not available before collection began.

## What to do

Use history_complete_from as the earliest moment you ask for. Earlier records are unavailable, not empty.

## Example response

```json
{
  "type": "https://docs.kapiworks.com/errors/before_history",
  "title": "History unavailable",
  "status": 422,
  "detail": "Records are not available before collection began.",
  "code": "before_history"
}
```

Errors use `application/problem+json` (RFC 9457). Act on `code` or `type`; `detail` is for people and can change.