Business license, seafood circulation or business license. Pinduoduo needs a business license, seafood circulation or business license to open a store to sell seafood. Pinduoduo requires different information for individuals to register and for enterprises to register. For personal stores, sellers must provide: business-related licenses. Distribution or business license for seafood. If the seller is a production enterprise, it can only provide a seafood production license without a circulation certificate. Pinduoduo is a mainstream e-commerce application product on the domestic mobile Internet. A third-party social e-commerce platform focusing on C2M group shopping, established in September 2015.