To enter Taobao Market C store, you only need to provide the seller’s basic information such as the seller’s personal ID card or business license, and upload a certain number of products to open the store. For products sold, if they are selling their own brand products (Taobao calls them "self-recommended brands"), the seller needs to provide a registered trademark certificate; if they are an agent for a certain brand, they need to provide a brand authorized agency certificate; if they are not registered trademark products, Just provide legal proof of purchase.