InvalidExemptReason
Example
{
	"code": "InvalidExemptReason",
	"target": "Unknown",
	"details": [
		{
			"code": "InvalidExemptReason",
			"number": 1211,
			"message": "Invalid exempt reason: -0-.",
			"description": "To create a certificate, a valid exempt reason is required.",
			"faultCode": "Client",
			"helpLink": "http://developer.avalara.com/avatax/errors/InvalidExemptReason",
			"severity": "Error"
		}
	]
}
Explanation

The exemption reason you specified cannot be found. Refer to the Exempt reason matrix help topic to view a complete list of exemption reason codes, or call the ListExemptionReasons API.