{
	"code": "InvalidCoverLetterTitle",
	"target": "Unknown",
	"details": [
		{
			"code": "InvalidCoverLetterTitle",
			"number": 1215,
			"message": "Invalid cover letter title: -0-.",
			"description": "To send a CertExpress invitation, a valid cover letter title is needed. You can get a list of available cover letter at api/v2/definitions/coverletters.",
			"faultCode": "Client",
			"helpLink": "http://developer.avalara.com/avatax/errors/InvalidCoverLetterTitle",
			"severity": "Error"
		}
	]
}