Each subscription box needs to have specific products in it. If you don’t have any products, you don’t have a box to sell. In order to have products, it’s important to build relationships with various vendors. If you’re starting a product service that promotes specific perfumes, find different perfume companies that are willing to do business with you. This portion takes a significant amount of networking, hard work and determination. If certain companies tell you no the first time, don’t be afraid to continue to work hard and circle back. In some cases, companies want you to prove your worth first.