ISO 9735 is an international standard that specifies the format for electronic data interchange (EDI) messages in the context of the UN/EDIFACT (United Nations/Electronic Data Interchange for Administration, Commerce, and Transport). It provides guidelines for the structure and syntax of these messages, ensuring that different systems can communicate effectively. The standard aims to facilitate the exchange of business documents, such as orders and invoices, between organizations. By adhering to ISO 9735, companies can improve efficiency, reduce errors, and streamline their operations in a global marketplace.