VersionNotValid
Example
{
	"code": "VersionNotValid",
	"target": "Unknown",
	"details": [
		{
			"code": "VersionNotValid",
			"number": 2602,
			"message": "Version Not Valid",
			"description": "The API version you passed in the request is not valid. Please pass a valid API version.",
			"faultCode": "Client",
			"helpLink": "http://developer.avalara.com/avatax/errors/VersionNotValid",
			"severity": "Error"
		}
	]
}
Explanation

This indicates that the version requested is not valid.