Your Guide to eRetail: eCommerce, mCommerce, Multichannel retail, and Omnichannel retail are some of the modern concepts when it comes to eRetail. If you are selling a product online, then it means that you are involved in eCommerce. While mCommerce is the next evolution of eCommerce. In mCommerce majority of the operations fall into the B2C category. When we talk about Multichannel retail, it includes a combination of different methods, while Omnichannel is the next evolution of a multichannel approach.