The Single Transaction Summary Document (STSD) is a document that summarizes an individual procurement transaction. This document is used by all interested parties in the procurement process to track the progress of, and effectively manage transactions between buyers and suppliers. The STSD provides critical detail such as transaction type, agreement details, products or services purchased, cost breakdown and payment information, performance ratings, pricing data, and any additional notes. Creating and maintaining accurate and detailed STSDs can help buyers effectively manage their procurement operations while providing suppliers with clear visibility into procurement processes.