# `request.validation_failed` — Request validation failed

**HTTP status:** 422  
**Retryable:** no — change the request or the flow first

## When it happens

One or more fields are missing or invalid. `errors` maps each field path to its messages.

## What to do

Fix the listed fields and send the request again.

## Example response

```json
{
  "type": "https://quickota.com/developers/errors/request.validation_failed",
  "title": "Request validation failed",
  "status": 422,
  "code": "request.validation_failed",
  "detail": "One or more fields are missing or invalid. \u0060errors\u0060 maps each field path to its messages.",
  "suggestion": "Fix the listed fields and send the request again.",
  "retryable": false,
  "requestId": "req_7f3a2c9e41d0b8a6c5e21f90"
}
```

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