Password Warning Days
Specify the number of days before each user's password expires to give a warning. The warning message displays each time the user logs in, and the message includes the number of days left until the password expires.
For example, if you enter a value of 5, and a user resets his password on June 1, the password will expire on July 31 and the warning message starts displaying on July 27.
The default value is 0, meaning no warning is given. The value in the Password Warning Days field must be less than the value in the Password Expiration Days field.