You can use a program to call up the corresponding function module for transferring data. You enter parameters that the system then checks for validity.
Import parameters
These parameters are independent of the selected area for the data transfer. They are the same in both planning and actual postings. You need these parameters to transfer data and control information.
Export parameters
These parameters are required for the results of executing a function module.
Table parameters
The table parameter is independent of the selected area for data transfer. You need it to transfer data and control information.