Most of the International Sale contracts are formed by electronic means of communication in today’s international business and trade. Sharp development of modern electronic communication technologies provides a challenge to the traditional rules of contract law. Formation of contract in international sale is similar to the rules of traditional contract formation rules. Application of the provisions of the UN Convention for the International Sale of Goods 1980 (CISG) are analysed in this article in relation to the usage of these methods of electronic communications technologies. The different approaches to the time and place of contracting as well as the formalities required are discussed and applied in this context. The research has discovered that the CISG forms a coherent body of uniform contract law in international sale world-wide, well suited to deal adequately with the modern electronic communications technologies