The first step in mobile SEO for eCommerce is to make sure that your website is set up for mobile devices. This means that it should be responsive, which means that it should work well on different sizes of screens and load quickly.  You should make sure that all of your images are optimized for mobile devices. This will make your website load much faster. Also, make sure your website is easy to use. This will make it easier for people to find what they are looking for.