Can Superusers Also Log Into Sub-sites?

Yes. If you have superuser privileges, a link for SSO (Single Sign-On) will appear in the site list, allowing you to log into sub-sites.

Location of SSO Link

[Settings]->[Site List]

info

Only users with superuser privileges can use SSO.

Behavior During SSO

The behavior when logging in via SSO is as follows:

• You will log into the sub-site with the same email address you use on the main site.
• If there is no matching email address on the sub-site, a new member with group_id=1 (superuser) will be added for login.
• If a user with the same email address but not superuser privileges already exists on the sub-site, you will log in with that existing level of access. (You will not be elevated to superuser status.)