Companies like Macy's have to move to an Omnichannel strategy for selling their products because it allows them to reach and engage with customers through multiple channels, both online and offline. This strategy helps to enhance the customer experience by providing a seamless and consistent shopping experience across different platforms. It also allows companies to meet the changing preferences and behaviors of consumers who are increasingly using multiple channels to research and purchase products. By adopting an Omnichannel strategy, companies like Macy's can increase their reach, improve customer satisfaction, and ultimately drive sales.