<Order_Add_Product order_id="1000" code="test"> (Required, order_id, code)
<Quantity>1</Quantity>
<Options>
<Option>
<AttributeCode>test</AttributeCode>
<Value>Yes</Value>
</Option>
<Option>
<AttributeCode>template</AttributeCode>
<AttributeTemplateAttributeCode>template_attr</AttributeTemplateAttributeCode>
<Value>v1</Value>
</Option>
</Options>
<Shipment> (Optional)
<Code>Ship_Code</Code> (Optional)
<Cost>1</Cost> (Optional)
<MarkAsShipped>Yes</MarkAsShipped> (Optional)
<TrackingNumber>1111111111</TrackingNumber> (Required)
<TrackingType>FedEx</TrackingType> (Required)
<ShipDate> (Optional)
<Day>7</Day>
<Month>9</Month>
<Year>2012</Year>
</ShipDate>
</Shipment>
<Shipment /> (Optional)
</Order_Add_Product>