OnlyTaxDateOverrideIsAllowed
Example
{
	"code": "OnlyTaxDateOverrideIsAllowed",
	"target": "Unknown",
	"details": [
		{
			"code": "OnlyTaxDateOverrideIsAllowed",
			"number": 1302,
			"message": "Invalid TaxOverride at document level",
			"description": "Only TaxDate override is allowed for multi transactions.",
			"faultCode": "Client",
			"helpLink": "http://developer.avalara.com/avatax/errors/OnlyTaxDateOverrideIsAllowed",
			"severity": "Error"
		}
	]
}
Explanation

For multi-company transactions, only the TaxDate override type is permitted.