Google Search Console Error: Either “offers”, “review”, or “aggregateRating” should be specified

Here’s an error which has started showing up for a lot of stores’ product category pages – WooCommerce stores in particular – in Google Search Console:

New Google AMP Warning “Image size smaller than recommended size”

If you’re running AMP for fast loading pages on the mobile web (and, if you’re not, you should give it a try, it’s awesome!), you maybe got a notification in Search Console (AKA Google Webmaster Tools) that “Image size smaller than recommended size” for some or all of your AMP content.