A fifth common mistake product marketers can make is not updating their differentiation over time to keep up with the changing needs, preferences, and expectations of their customers and the evolving trends, technologies, and innovations of their industry. Updating your differentiation is the process of continuously monitoring and evaluating your market performance, your customer feedback, and your competitive landscape and making adjustments and improvements to your products and your messaging accordingly. Without updating your differentiation, product differentiation can become outdated, irrelevant, or obsolete. For example, if you are selling a travel app, you need to update your differentiation over time by adding new features, destinations, or partnerships that reflect the changing needs and preferences of your customers and the evolving trends and technologies of the travel industry. Otherwise, you might end up losing customers to newer and better alternatives.