If you create users in Active Directory that do not match the Active Directory password policy, those users will be created in Directory Server.
Active Directory actually creates users “temporarily” and then deletes the entries if the password does not meet the password policy requirements. Consequently, the Active Directory Connector sees this temporary ADD and creates users in Directory Server. The users will not have a password in Directory Server, so no one will be able to log in as those users. In addition, these entries will not be linked to a valid entry in Active Directory. If deletions are synchronized from Active Directory to Directory Server, the temporarily created users will be deleted automatically.
Users are created without a password in Directory Server. Directory Server does not enforce the password policy for user creations unless the entries contain a password.
The preferred method from recovering this situation is to synchronize deletions from Active Directory to Directory Server. Alternatively, you can remove the users from Directory Server and then add them to Active Directory with a password that follows Active Directory password policies. This method ensures that the users are created in Directory Server and are properly linked. Directory Server users will have their password invalidated when they log in to Active Directory for the first time and change it.
If you do not delete the user from Directory Server, and then try to add the Active Directory user again with a new password, the ADD to Directory Server will fail because the user already exists in Directory Server. The entries will not be linked, and you will have to run the idsync resync command to link the two separate accounts.
If you run the idsync resync command, you must reset the passwords for the accounts in Active Directory that were linked to entries in Directory Server. Resetting the passwords invalidates those passwords in Directory Server, which then forces on-demand synchronization to update the Directory Server passwords the next time users authenticate to Directory Server with their new Active Directory password.