Hi,
Use SU21 to create Authorisation object.(ZTEST)
Chose the value for Authorisation Field "ACTVT".
Save and Activate.
Assign that Authorisation object to one of the Authorisations of user in SUIM.
Then in you report to check if user has that authorisation check using code
AUTHORITY-CHECK OBJECT 'ZTEST' for user sy-uname ID 'ACTVT' Field '02'.
if sy-subrc = 0
"Then user can execute else not.
Endif.
Thanks
Deepak