What is the difference between a seller and a vendor? Follow Weedmayhem April 19, 2019 01:36 Updated Sellers sell products directly to Weedmayhem customers. If you manage your products in Space Station, you’re a seller. Vendors sell their items directly to Weedmayhem, who then sells them to customers. Have more questions? Submit a request 0 comments Please sign in to leave a comment.