How to build successful Cannabis Ecommerce Websites When it comes to cannabis e-commerce, the potential is enormous. As the number of consumers using the drug rises, the ecommerce market will also grow, making it easier for brands to market their products. The biggest problem with traditional retail can be the legal structure, and ecommerce provides the perfect solution. However, as with any emerging industry, there are several obstacles to be overcome before your online store can be an absolute success.