BAPI Explorer
RFC (Remote Function Calls) may be made to the function module on which the BAPI is based. Knowing how to obtain the correct BAPI will therefore help you in your system design.
3 popular BAPI names are: Read more 
BAPI’s and Function Modules
BAPI stands for Business API(Application Program Interface). A BAPI is remotely enabled function module ie it can be invoked from remote programs like standalone JAVA programs, web interface etc.
SAP describes BAPIs (Business Application Programming Interfaces) as “business (not technical) interfaces of an SAP System, which do not require users to have a thorough knowledge of the SAP System or of the SAP development environment.”
One can simply test a function module with transaction SE37. Read more 




