Profit Center restriction from a user.

Hi All,

We have 3 locations say x ,y,z . All the locations related to 1 common segment . All 3 locations have different profit centers say 1001,1002,1003 . Now my query is when user x see report FAGLB03 of a GL it is showing cumulative balance of all profit centers . However it should show only of profit center 1001 for user X . For this we have made changes in profit center authorization like K_PCA and assign only 1001 for x . But still it showing the old result. Could you please guide where I should make restriction so it will show only 1001 profit center data for user X and not others . Please guide.