UnsupportedOutputFileType
Example
{
	"code": "UnsupportedOutputFileType",
	"target": "Unknown",
	"details": [
		{
			"code": "UnsupportedOutputFileType",
			"number": 1801,
			"message": "The requested output file type -0- is invalid.",
			"description": "The requested output file type must either be CSV or JSON file.",
			"faultCode": "Client",
			"helpLink": "http://developer.avalara.com/avatax/errors/UnsupportedOutputFileType",
			"severity": "Error"
		}
	]
}
Explanation

This indicates that you specified an invalid output file type. Please specify either CSV or JSON.