CompanyInvalidException
Example
{
	"code": "CompanyInvalidException",
	"target": "Unknown",
	"details": [
		{
			"code": "CompanyInvalidException",
			"number": 3,
			"message": "Company could not be found.",
			"description": "The company -0- does not exist, or you do not have the rights to view it.",
			"faultCode": "Client",
			"helpLink": "http://developer.avalara.com/avatax/errors/CompanyInvalidException",
			"severity": "Error"
		}
	]
}
Explanation

This indicates that the company with the specific ID number does not exist, or you do not have access to use that company. Use the QueryCompanies API to determine which companies exist in your account.