How to resolve : User is unable to change its password and getting error as "You must wait longer to change your password"

Getting error as "You must wait longer to change your password" while changing user password in Red Hat Enterprise Linux

Issue

    While changing the user password getting following error:

You must wait longer to change your password 
passwd: Authentication token manipulation error

    User is unable to change its password and getting error as "You must wait longer to change your password".
    Copied the user passwd entries from a BSD box. That may be what is causing the problem. However, pwck come back clean.

Resolution

    First check password aging policies/information for user as follows:

# chage -l user 
Last password change: Feb 07, 2011 
Password expires: May 08, 2011 
Password inactive: never 
Account expires: never 
Minimum number of days between password change: 7       <---
Maximum number of days between password change: 90 
Number of days of warning before password expires: 28

If Minimum number of days required for password change is set to 7 days then it will prompt an error message as You must wait longer to change your password while changing password using command passwd
Change the password aging information to linux defaults and try to change the password.
Changing 4th field to '0' will change Minimum number of days between password change to '0' so that user will be able to change its password without any restrictions.
 Make following changes to "/etc/shadow" file as root user:

user:$1$rmOPqlKQ$DMS2VsQuV/LNh8it5jT.N0:15012:0:99999:7:::     <---

OR

Expire the user's password using root account:

# chage -d 0 user

Then check again for password aging information for user:

* # chage -l user 
Last password change: Feb 07, 2011 
Password expires: May 08, 2011 
Password inactive: never 
Account expires: never 
Minimum number of days between password change: 0    <--- 
Maximum number of days between password change: 90 
Number of days of warning before password expires: 28
 
Try to change the password and it should work now.

Root Cause

    The issue mentioned above seems to be due to user password expiry settings are too restrictive.
    Minimum number of days between password change was set to 7 days so password change was not allowed before 7 days. The error You must wait longer to change your password was suggesting the same.