xml de produtos Google shopping modulo http://mirasvit.com/manuals/advanced-product-feeds-generator.html#ExampleFeedforGoogleShopping
<?xml version="1.0" encoding="utf-8" ?>
<rss version="2.0" xmlns:g="http://base.google.com/ns/1.0">
<channel>
<title>Data feed Title</title>
<link>{base_url}</link>
<description>Data feed description.</description>
{each type="product"}
<item>
<g:id>{sku}</g:id>
<title><![CDATA[{name,[html_entity_decode]}]]></title>
<link>{url}</link>
<g:adwords_redirect>{url}</g:adwords_redirect>
<g:price>{price,[number_format 2]}</g:price>
<g:sale_price>{special_price,[number_format 2]}</g:sale_price>
<g:online_only>y</g:online_only>
<description><![CDATA[{short_description,[strip_tags]}]]></description>
<g:product_type><![CDATA[{category_path}]]></g:product_type>
<g:image_link>{image}</g:image_link>
<g:condition>new</g:condition>
<g:availability>in stock</g:availability>
<g:quantity>{qty}</g:quantity>
<g:color>{color}</g:color>
<g:shipping_weight>{weight, [number_format 2]} kilograms</g:shipping_weight>
<g:manufacturer>{manufacturer}</g:manufacturer>
<g:installment>
<g:months>{special_price,[numerototalparcelas]}</g:months>
<g:amount>R$ {special_price,[valortotalparcelas]}</g:amount>
</g:installment>
<g:brand>{manufacturer}</g:brand>
<g:mpn>{sku}</g:mpn>
<g:gtin>{ean}</g:gtin>
</item>
{/each}
</channel>
</rss>