InvalidEnumValue
Example
{
	"code": "InvalidEnumValue",
	"target": "Unknown",
	"details": [
		{
			"code": "InvalidEnumValue",
			"number": 164,
			"message": "The field '-0-' has an incorrect value.",
			"description": "The value '-1-' for the field '-0-' is invalid.  Acceptable values are: -2-.",
			"faultCode": "Client",
			"helpLink": "http://developer.avalara.com/avatax/errors/InvalidEnumValue",
			"severity": "Error"
		}
	]
}
Explanation

The field you attempted to provide is an enumerated value field. This means that the field only has a limited list of permitted values. Please review the list of values in the error message and choose a correct value.