Dropshipping and Shopify go hand-in-hand. Start by building an ecommerce store based on your branding and preferences before connecting to your supplier through an app (if they have one). Alternatively, leave your inventory zero’d out in your admin and select “continue selling when out of stock” since you aren’t responsible for your inventory, your supplier is. Once you’ve got that set up, go through the steps listed on your supplier’s website to integrate your store with their process.