UserName is often used by clients who have the Single Sign-On option.

Instead of logging in with, I can then log in with MSmith. UserName is not required for Single Sign-On; some clients have a standard of using the email address for their login process. This is preferred even for single sign-on as it allows users to log in from instead of requiring the subdomain such as in the embed or at

For clients who do not use the Single Sign-On option, you can also upload a user name for members to use when loggin into Regroup.

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