You should use a landing page to make sales with affiliate marketing. A landing page helps you focus on one product. It allows you to showcase the product's benefits clearly. You can use a strong call to action that directs visitors to take the next step. A landing page builds trust with your audience. You can add testimonials or reviews to increase credibility. It also helps you track conversions and improve your approach. While not mandatory, a landing page increases your chances of making sales. You should test and optimize your landing page for better results.