Amazon MWS Order Cancel process
问题 I am trying to cancel the order on the amazon, initially was having some of the format issues, now all the format issues are removed but feed result is keep showing one or more item is invalid. i am using the correct xml format to cancel the order and also the correct amazon order id and amazon order item id, both id are valid but the result keep showing the invalid item. Order Acknowledgement Feed Format: <?xml version="1.0"?> <AmazonEnvelope xmlns:xsi="http://www.w3.org/2001/XMLSchema