SAP T codes provide quick access to various functions and transactions within the SAP software system. These codes are shortcuts that users can enter to perform specific tasks efficiently. This comprehensive list covers T codes for all modules in SAP, including Finance, Human Resources, Sales and Distribution, Production Planning, and more. By using these T codes, users can navigate through different modules, carry out processes, and retrieve information faster, streamlining their workflow and enhancing productivity within the SAP environment.