The creation of a single digital single market is one of the key objectives of the European Commission. The work deals with the challenges for European contract law in the areas of 3D printing, sharing economy and Internet of Things. The proliferation of digital products, and particularly the Internet of Things, the sharing economy and of 3D printing make the legislator and jurisprudence with new challenges. The band is made up in this context, inter alia, with the impact on contractual obligations, the effects of the contractual and non-contractual liability as well as the notion of consumer apart.