SAP GUI for Windows 
You need the SAP GUI to log on to and to use the SAP systems. Your system administrator installs the SAP GUI on your machine, after which you can personalize it and start performing your daily tasks.
Features
Log on to an SAP system using the SAP Logon.
For more information, see Logging on to an SAP System.
Navigate effectively through the SAP systems using the navigation features of the SAP GUI.
For more information, see Navigating in the SAP Window.
Adjust your local layout in various ways according to your preferences, needs, and local requirements.
For more information, see Personalizing the SAP Window.