Omni-channel retailing is an approach to sales that enables customers to interact with multiple sales and media channels – from desktop through mobile to in-store.
Omnichannel retail is a strategy according to which retailers engage customers through multiple digital and physical touchpoints. It has to be noted, a lot of popular companies choose the omnichannel retail strategy. Here I can name Amazon, Nike, Zara, Louis Vuitton, H&M, Walmart, Apple, Adidas, Uber, etc. As you can see, they achieved success, so the strategy is really good and smart.