# pax_below_roster

> The headcount cannot go below the number of passengers already on the trip.

**Headcount below the roster** · HTTP 422

## What it means

The headcount cannot go below the number of passengers already on the trip.

## What to do

Remove passengers first, or keep a higher headcount.

## Example

```json
{
  "type": "https://api.bymundi.com/problems/pax_below_roster",
  "title": "Headcount below the roster",
  "status": 422,
  "detail": "The headcount cannot go below the number of passengers already on the trip.",
  "code": "pax_below_roster",
  "requestId": "req_…"
}
```

How to read any error: [Errors guide](https://api.bymundi.com/docs/guides/errors.md).