The resource could not be found, or the authenticating user does not have access to the resource.

We use 404 rather than 403 for invalid permissions as we don’t want to leak that the resource exists to another user

Example response

  "type": "https://developer.nexmo.com/api-errors#invalid-api-key",
  "title": "Invalid API Key",
  "detail": "API key 'ABC123' does not exist, or you do not have access",
  "instance": "797a8f199c45014ab7b08bfe9cc1c12c"