Function module

1)Step 1 T-code Se37

2) Step2
3)Step 3 Create interface parameters
4)Step 4
5)Step 5 Create table parameter
6)Step 6 Create exceptions
7)step 7 Source code in function module

Function module - Interface parameters

Import

Contains a list of the formal parameters that are used to

pass data to a function module.

Export

Contains a list of the formal parameters that are used to

receive data from a function module.

Changing

Contains a list of the formal parameters that are used

both to pass data to and receive data from a function

module.

Tables

Specifies the tables that are to be passed to a function

module. Table parameters are always passed by

reference.

Exceptions

Shows how the function module reacts to exceptions.

The function definition is written in the editor (Source code)