How to Build Successful Cannabis Ecommerce Websites In the case of cannabis e-commerce, the potential is immense. As the number of users using the drug rises and the demand for e-commerce increases, it will also increase and make it easier for companies to market their products. The main issue for traditional retailers has to do with the law, and ecommerce provides the perfect solution. However, just like every emerging industry, there are several hurdles to overcome before your ecommerce site can become an absolute success.