Selecting function module for functional EasyInput script

In order to select the ID of a function module for the BAPI/ function script, one uses the SAP system.

EasyInput can use each function module that is “remote enabled” (see function module properties). In general one can browse function modules in transactions SE37 and SE80.  

SAP however contains a huge list of predefined, ready for use remote enabled function modules, within so called Business Application Interface (BAPI). To browse these in the SAP system, one calls the transaction BAPI (Business API Explorer). BAPI explorer shows Business Objects and their methods prepared for the interfacing with the SAP system.

When After double clicking on a method of an BAPI object, on the Details tab, one can see the function module implementing the method ID. This ID should be given to create the function script.
In the BAPI Explorer one can read BAPI methods parameter description (it is recommended to log in to an SAP system with the English language, as most of the description are given only in English).