If set to anything other than the empty string, it means the address is "bad". The value indicates what is wrong with the address. A list of possible values can be found in BadAddressReasons.

public string BadAddressReasonCode { get; set; }

Public Property BadAddressReasonCode As String

public:
property String^ BadAddressReasonCode {
	String^ get ();
	void set (String^ value);
}