Great question! The suppliers in our directory are a mix of drop shippers and small order suppliers. If approved with specific suppliers, you should be able to buy one at a time, following our Drop Shipping business model.
If you are a full course member you can access Module 2 - "Market Research" here - https://courses.dropshiplifestyle.com/modules/module-2-market-research/?course_id=117 and Module 4 - "Get Drop Shippers" here - https://courses.dropshiplifestyle.com/modules/module-4-get-drop-shippers/?course_id=117
If you are a DSLabs member or have purchased the 10 Day Advanced Plan you can get some more info on Supplier Sourcing Training by following this link -
If you have enrolled in the free 10 Day Mini Course you will learn a bit about this in Module 7 - "How Do I Get Suppliers?".