Google Implements Unique Product Identifiers for Shopping Feeds
Google has just implemented the requirement for unique product identifiers for products in the Google shopping feed. Based on Google’s comments, it appears that the main focus of this requirement is to make it easier for Google to know when two offerings are actually the same product, and then to display the lowest price. Unfortunately, this sounds like not just an easy system to game, but possibly one that encourages deceptive e-retailing practices.