I'm getting no errors when I activate my abap program but when I try to execute this nothing happens. I previously tried it and it worked. This fragment of code for example was ok before but now it doesn't do anything.
REPORT Z_xx
DATA: lv_response1 TYPE flag,
lv_response2 TYPE flag,
lv_response3 TYPE flag.
SELECTION-SCREEN BEGIN OF SCREEN 100.
SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME TITLE TEXT-t01.
PARAMETERS: s1 RADIOBUTTON GROUP g1,
s2 RADIOBUTTON GROUP g1,
s3 RADIOBUTTON GROUP g1,
s4 RADIOBUTTON GROUP g1.
SELECTION-SCREEN END OF BLOCK B1.
SELECTION-SCREEN END OF SCREEN 100.