Every transaction has a name (Transaction) and technical name (Transaction Code). For example, Maintain HR Master Data’s technical name (or transaction code) is PA30.
Transaction - A process that an end user performs to complete a business task, such as displaying employee information. Each transaction is assigned a transaction code.
Transaction Code - A code that provides end users access to the initial screen of a transaction, or specific area of HRMS to view business related information and/or to perform business related tasks (based on assigned roles).