Google has a full set of guidelines for listing your business. If your business is 100% eCommerce-based, then it stands to reason that local SEO is not the best approach. If you don’t have a physical location for customers to visit your store, local SEO won’t benefit you. This, of course, is because Google likes to keep things relevant for users. It would not be effective or efficient for Google to show eCommerce businesses when you’re looking for a local place to grab that ice cream sundae. You want to visit an ice cream shop - you don’t want to buy ice cream fixings online and have them delivered to your home. Generally, local SEO is a good option for a business that has a lot of in-person interaction with users. This can apply to local shops, medical offices, or any other business where you see your clientele face-to-face.