Understanding Dialog - Programming flow and Events

• Module pool programming is also known as dialog programming.
• Used to design screens and screen flow.
• Transaction code SE80.

• Flow logic : Flow logic acts as a interface between the main program and screen.

Events :

PAI : Process After Input.

• After giving the input if you want to do certain action, then write code here.

PBO : Process Before Output.

• This event will execute before the output display.

POV : Process on Value Request 

• This event is used for value request (f4).

POH : Process on Help Request.

• This event is used for help request (f1).