# Errors

## Validation Errors 

Validation errors occurs when one or more validation rules are not met. For example, not passing a required field in the body of a request this causes a 409 error 

`Status code : 409 - Conflict error`  

```
{
    "required field": [
        "error message"
    ]
}
```

## Authentication Errors  

Authentication errors occur when you fail to authenticate a request or pass the correct authentication key or when you pass in an invalid key. For example making a request without an authorization key. 

`Status code : 401 - unauthorized` 

```
{
    "description": "Please provide an auth token as part of the request.",
    "title": "Auth token required"
}
```

Another instance of authentication error is making a request with a key that doesn't have permission to perform that request.

`Status code : 403 forbidden`  

```
{
"message" :"error message"
}
```

## Other Errors

| Status Code | Description                                                                                                                 |
| ----------- | --------------------------------------------------------------------------------------------------------------------------- |
| 400         | The request could not be fulfilled because it already exists or is a bad request                                            |
| 404         | The request could not be fulfilled as the request resources does not exist.                                                 |
| 500, 501    | This request could not be completed quickly contact Sendbox if you encounter any of these response. it almost never happens |