In ABAP, There are three types of Function Modules. Se37 is the transaction code to create any of these functional modules
- Normal Functional Module
- Remote Enabled Module (or) RFC
- Update Function Module
![Types of Functional Module](https://saplearners.com/wp-content/uploads/2015/01/1.png)
In ABAP, There are three types of Function Modules. Se37 is the transaction code to create any of these functional modules