A strategic business unit (SBU) is a subsidiary within a firm, which participates within a given market/industry. The SBU would embrace the corporate strategy, and attune it to its own particular industry. For instance, an SBU may partake in the sports goods industry. It thus would ascertain how it would attain additional sales of sports goods, in order to satisfy the overall business strategy.
This refers to how the product gets to the customer; the distribution channels and intermediaries such as wholesalers and retailers who enable customers to access products or services in a convenient manner. This third P has also sometimes been called Place or Placement, referring to the channel by which a product or service is sold (e.g. online vs. retail), which geographic region or industry, to which segment (young adults, families, business people), etc. also referring to how the environment in which the product is sold in can affect sales.  5 Digital Marketing Skills to Master for 2020 & Beyond