Multichannel and omnichannel retail

Although the two terms are sometimes used interchangeably, multichannel and omnichannel retail are actually completely different concepts.

But what exactly is the difference? 

The biggest difference between multichannel and omnichannel retail is that the former focuses on the different sales channel offerings, whereas the latter is much more consumer-centric. Omnichannel retail focuses on enhancing the customer experience by offering more flexibility to consumers to engage with the brand as they wish.