Google releases official help articles on Advanced data management features in Google Merchant Center Next.
New help articles provide step-by-step guidance for using attribute rules to fix data errors and supplemental data sources to enhance product information.
To know more, read the article here: Manage your product data sources with ease!
These features are being rolled out as we speak. They are already available in some accounts: Feed Rules And Supplemental Feeds Live in Merchant Next. The launched should be finished in the coming days or weeks
