Some errors might be encountered after an API request is made and a response is returned.

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



The request could not be fulfilled because it already exists or is a bad request


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

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