It is seen as a channel which starts from production and ends at consumption. As a concept it is very similar to distribution channel.
Marketing channel can drive marketing objectives of a firm.
As per the marketing channel chosen, the pricing strategy of the product can be determined as we see a lot these days. Selling through a website directly to consumer a manufacturer may be able to offer better discounts whereas selling through a more traditional channel through a wholesaler/distributor, they may have to sell it at MRP.