FORM welcome_user USING value(id_uname) TYPE sy-uname
value(id_zeit) TYPE sy-uzeit
CHANGING ed_message TYPE string.
DATA: ld_zeit TYPE c LENGTH 8.
WRITE id_zeit TO ld_zeit USING EDIT MASK '__:__:__'.
CONCATENATE
`Hallo `
id_uname
` um `
ld_zeit
INTO ed_message.
ENDFORM.