The Omnichannel solution is for:
You currently have a brick-and-mortar store but no online presence. You are limited to only those customers who can visit your store during business hours.
You have a retail store front location and an online presence. Your limitations come from wasting your time managing two systems that don't properly integrate.
You want to fuse your brick-and-mortar business with your online store, using a single solution that offers your customers one consistent experience.