You can get to the help module you need in two ways:
By using context-sensitive help
By finding your own way in through the R/3 Help Library
Context-Sensitive Help In this type of help system, the kind of help window SAP R/3 shows you depends on which screen you are in when you ask for help.
For this lesson, assume that you're looking for help related to creating a purchase requisition. To access context-sensitive help, start on the Create: Purchase Requisition: Initial Screen. (If you don't remember how to get there, refer to Lesson 3, "Getting Around the Screen.") From that screen, choose Help, Extended Help.
SAP R/3 checks to see which screen you are in and takes you into ...