In preparation for the new Google Product Category Attribute requirement on September 22nd, 2011, we have released some updates to the product entry/edit pages and bulk import and edit.
We have added an additional field for the required "google_product_category" attribute. When viewing the Add/Edit product screens, you will see an additional form:
There is also a "Select" button which will load a window where you can choose a recommended taxonomy. Optionally, you may enter your own taxonomy as well.
For bulk product updates and uploads, we've added a google_producttaxonomy column.
If your product has a value saved for Category/Taxonomy, we'll automatically add the attribute to your product feed. Please do not use the additional attributes to fill the google_product_category attribute since this will cause your Google feeds to fail with "duplicate attributes" errors.