This article covers the ability to have a user authenticate into their Okta Account, with values other than the complete username.

• Okta user authentication

A user can authenticate into Okta with their username or by short match login. This means that a user can authenticate with "username@exampledomain.com" or just "username," removing the "@exampledomain.com."

This, however, comes with the following limitation:

• If two users have the same username but use different domains, for example, username@exampledomain1.com and username@exampledomain2.com, when using short match login, both of the users will run into the following error message.