Multi-channel
Each channel functions independently and is not integrated, centralized, or linked.
For example, the seller approach customers from various channels such as EC sites, SNS and e-mail magazines, radio commercials, TV commercials, Internet advertisements, and advertisements etc.
Omni-channel
It is possible to connect various channels, and customers can purchase products from any channel.
A state in which each channel is integrated, centralized, and linked.
For example, after searched the product on the EC site, payied for the money of the product at real store. The mechanism that allows you to receive products at home or at another location (convenience store, etc.) is an omni-channel that connects the purchasing experience of the store and the EC site.