# `request.invalid_state_transition` — Action not allowed in the current state

**HTTP status:** 409  
**Retryable:** no — change the request or the flow first

## When it happens

The action does not apply to the resource's current status (for example issuing a booking that is already cancelled). `context.currentStatus` and `context.allowedActions` describe what is possible now.

## What to do

Fetch the resource and follow its `nextActions`.

## Example response

```json
{
  "type": "https://quickota.com/developers/errors/request.invalid_state_transition",
  "title": "Action not allowed in the current state",
  "status": 409,
  "code": "request.invalid_state_transition",
  "detail": "The action does not apply to the resource\u0027s current status (for example issuing a booking that is already cancelled). \u0060context.currentStatus\u0060 and \u0060context.allowedActions\u0060 describe what is possible now.",
  "suggestion": "Fetch the resource and follow its \u0060nextActions\u0060.",
  "retryable": false,
  "requestId": "req_7f3a2c9e41d0b8a6c5e21f90"
}
```

See [Errors](https://quickota.com/developers/guides/errors) for how to handle errors in general.