The settings on the SSO General tab apply to all configured SSO
Fastpath:Admin Console > People > Settings > Single Sign On > General
Enable Username Confirmation for New Users, Enable Email Confirmation for New Users
These settings define the behavior for new users when they first log in. When they're
selected, users will be asked to confirm that they want to use the relevant value
(username, email, or name) that is provided by the Identity Provider. They can also
change these values if they wish. By default, these settings are all disabled, since in
most cases the intended result is for users to be forced to use the username, email, and
name defined for them in the corporate directory. The Enable Name Confirmation setting
has an additional application when users typically log in with either a single-word
username or an email address, but may need the option to provide a first/last name
combination. If you select this check box, users can also modify those profile fields
after initial login.
Note: These fields also apply to any users who may be
logging into your community using External ID.
Allow Federated Users to Change Name
Use this setting if you want federated users to be able to change their names in the profile settings and have the change propagated to the IdP.
External Identity is Case-Sensitive
Use this setting to determine whether the value used for the external identity should
be case-sensitive. You should disable this setting in a case where the external identity
value changes under different circumstances, for example when it's sometimes all
lowercase and sometimes all uppercase.