Looking Up Function Modules
Before creating a new application, you can search in the Function Builder to see if suitable function modules already exist. You can do this in the Repository Information System or in the Application Hierarchy.
Using the Repository Information System
To search for a module, choose Find from the initial screen of the Function Builder. The system displays the standard Function Module search screen.
The Repository Information System's search screen offers you a number of selection options. Only some of these options are displayed when you first call the screen. To view the rest of the selection options, choose Edit ® All selections :
Enter either a function group or a package for a quick search. You can also limit your selection to function modules of a particular type. You can search for remote function call (RFC) modules or for those that are used in update routines.
You can also generate a list of only those function modules that are released for customers. For more information about searching with the Repository, see
The Repository Information System .Using the Application Hierarchy
You can also search for function modules using the Workbench's Application Hierarchy. The Application Hierarchy provides an overview of all the applications in your R/3 system. You can use this hierarchy to display function modules associated with particular applications. Proceed as follows:
The Application Hierarchy