Signals to trigger Google Shopping Results?

[networkelites]

I am in the process of setting up a shopping cart for a customer.  We will probably use osCommerce.  Are there established best practices and guidelines to make one's cart trigger results in the Google "Shopping" category?  For instance, using microdata and the semantic markup from Schema.org?  Any experience here is welcome.

[eunaneunan]

You have to submit to googles Merchant Center a txt file with all your products. It has to be formatted in a certain way, but zen-cart (which is a spin-off of osCommerce) has a module for it that exports you product in the correct format for google:

http://www.zen-cart.com/index.php?main_page=product_contrib_info&products_id=473

[networkelites]

Thanks eunaneunan!