Which of the following is not an Exchange function of Marketing? Product Planning 8 Development Buying function After-sales service Selling Function

The correct answer is "After-sales service." <br /><br />The exchange function of marketing typically includes activities such as product planning and development, buying function, and selling function. After-sales service, while important for customer satisfaction and retention, is generally considered a post-exchange activity rather than a core part of the exchange process itself.