CannotModifyDeletedObjects
Example
{
	"code": "CannotModifyDeletedObjects",
	"target": "Unknown",
	"details": [
		{
			"code": "CannotModifyDeletedObjects",
			"number": 121,
			"message": "Object cannot be modified.",
			"description": "You cannot modify an object with an inactive / deleted flag.",
			"faultCode": "Client",
			"helpLink": "http://developer.avalara.com/avatax/errors/CannotModifyDeletedObjects",
			"severity": "Error"
		}
	]
}
Explanation

Once an object has been deleted, its URL is reserved and cannot be reused.