** NEW-BE** Change User - prefix only

Hi All,

This is my first post and I am hoping that someone can offer me some much needed information.

We have an emergency project which involves changing the prefix of users in the same Domain for example CEU00001 to HEU00001. We are not migrating the users simply changing the login ID and we would like to keep the users profiles "as is" at point of Prefix change, and reach back from the new HEU logged in account to the CEU profile.

The question I have is - can the quest Migration Manager or RUM tool be used for this purpose, and if so could someone let me know how I could achieve this task using these tools.

Any information would be greatly appreciated.