ABAP Keyword Documentation →  ABAP Glossary 

Function code

Sequence of up to 20 characters that can be assigned to specific control elements of the user interface. When selecting one of these control elements, the screen event PAI is triggered and the function code is transferred to the ABAP program using the system field sy-ucomm or the OK field of the screen.

Other versions: 7.31 | 7.40 | 7.54