Regions help to organize your ABAP code.
You can collapse and expand Region code blocks
Example:
"$. Region Internal Table
data : lt_bkpf type standard table of bkpf,
lt_bseg type standard table of bseg,
lt_bsik type standard table of bsik.
"$. Endregion Internal Table
"$. Region Structure
data : ls_bkpf type bkpf,
ls_bseg type bseg,
ls_bsik type bsik.
"$. Endregion Structure