Build your three

Choose any three qualifying products, the same one three times if you like. Buy 2, Get 1 Free applies to one-time purchases and is worked out in your cart: the lowest-priced one-time item is free. With other items in your cart, Shopify works out the free items across everything, so your cart decides which. Subscriptions count toward three but are never the free item; set them up on the product page.