Determines the number of days until the users password expires. Once the number of days reaches 0, users will not be able to log into SOLA unless they have the ManageSecurity role (i.e. role to change manage user accounts) or the NoPasswordExpiry role. To configure the number of days before a password expires, set the pword-expiry-days setting in system.setting table. If this setting is not in place, then a password expiry does not apply.