
or5ff (or5ff) asked a question.
We currently have our "Okta username format" setup to custom using the below expression:
"NN"+appuser.employeeID
If we change the expression to the below one, will users that result in the same username have to resetup their account?
(String.len(appuser.employeeID)) == 0 ? appuser.samAccountName : "NN"+appuser.employeeID

Hi Brian, I can't validate the expression, but updating the username format should not force the users to re-register. However, I would be careful, that if you are changing the username, you will want to make sure any applications you have configured to use your Okta username are addressed, as you could also be updating the username sent to the applications.
Definitely test beforehand, and it couldn't hurt to reach out to Okta support for quick confirmation.