How to update MS CRM User logon name

There might be times where we happen to update the domain logon name of a crm user when there is a change in the name in the Active Directory. If we try to update the logon name in MSCRM, we end up with the below error:

"You are attempting to create a user with a domain logon that is already used by another user. Select another domain logon and try again"


To overcome this and to change the logon name successfully, create a dummy user in the active directory and make sure that doesn't exist in crm users. Now, open the user whose logon name should be changed. Point the logon name to the dummy account and save it. Now, re open the user and point to the updated account and save it.