Dear Experts,
I found a strange behaviour in our ECC 6 system (BASIS release 702). System is not prompting for password change after password expiration time and this is happending for few users. So far five users have reported this behaviour. Users are happy indeed for this 
We have parameter login/password_expiration_time = 30.
These users are even not able to change their password themselves. When they are trying to change their password using "New Password" button in login screen, system is giving message as "you can change your password only once a day". Even though user did not change password in that day at all.
Initially I though there may be any parameter where users' id maintained to exclude password policy, but seems there is no paramter like this in ECC6.
Your help will be appreciated to find out reason for this strange behaviour.
Regards
Aktar