The Related Products option allows you to advertise and up-sell other products to your customers with the chosen one. These products are displayed below the selected product on the product details page. You can add an unlimited number of related products to a product.

1. Go to Catalog > Products > Manage Products.
2. Click Edit for the desired product.
3. Click the Related Products tab.

4. Check the products you wish to add as related products.
5. Click Save.
6. Click the Save button.