To automate new in products, we need to be able to identify that a product is 'new', or that it has been recently added to the feed. The best way to manage new in is by a 'date added' field in the feed. Simply, this is the date that the product was inserted into the product catalogue for the first time. Alternatively, if a date is not possible, some brands use a 'newness' value which indicates how many days a product has been in the feed where 0 = new.