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 in
SAP GUI. When one of these control elements is selected, the
dynpro event
PAI is triggered and the function code is passed to the
ABAP program using the
system field sy-ucomm or the
OK field of the dynpro.