Version Information Segment
The first two lines of every response contain version information. The first line details the XML version used. In this example,the version is 1.0. The first line also includes the character encoding. In this example, it's UTF-8.
The second line of every response has the name of the response, which includes the name
of the operation of the request. In this example, the
returns a response element named
The second line also contains the version of Product Advertising API used to create the response. If a version is not specified in a request, Product Advertising API uses the default and latest version, 2013-08-01.