Zoom Events and Zoom Sessions hosts can invite non-Zoom users to their events. Hosts can use company credentials (external single sign-on (SSO) authentication profile) from their Zoom account when creating an event. The authentication profile is configured by their account admin.

When an external single sign-on profile is selected, the event page and join link will be protected by the external authentication profile requirements. Registrants/attendees will be taken to the host's identity provider (IDP) website for authentication before accessing the event page/event lobby. Additionally, the event’s join link will also direct users to the host's IDP website for authentication instead of asking them to sign in to Zoom.

Notes:

• Users do not need to have a Zoom account when joining an external authentication event.
• All external SSO authentication profiles are created by the event organizer's account owner or admin in the Zoom web portal. Event organizers must notify registrants on the external SSO list.
• Event organizers must notify registrants on the external SSO list. Every receiver uses the same link to join the event.
• The SSO option will block users who cannot pass authentication at the host's identity provider (IDP).

This article covers:

• How to register for an event with an enabled external SSO authentication
• How to join an event with enabled external SSO authentication
  • Join an event with enabled external SSO authentication with registration
  • Join an event with enabled external SSO authentication without registration

Prerequisites for using external authentication for Zoom Events

• SSO configured on your Zoom account

How to register for an event with an enabled external SSO authentication

1. Click the link of an event detail page.
   When external authentication is enabled for the event, users will be redirected to a sign-in page on an external IDP website. The IDP is specified by the authentication profile.
2. Sign in to the IDP website.
   Users will be redirected to the event detail page.
3. Register for the Zoom Event.

How to join an event with enabled external SSO authentication

Join an event with enabled external SSO authentication with registration

1. Click the join link of the Zoom Event.
   When external authentication is enabled for the event, users will be redirected to a sign-in page on an external IDP website. The IDP is specified by the authentication profile.
2. Sign in to the IDP website.
   Users will be redirected to the event lobby on a webpage.

Join an event with enabled external SSO authentication without registration

Attendees who use the one-join link will receive a pre-join page at their first join. The pre-join page displays their names, the email address that passed authentication, privacy terms, and user terms. Attendees must click Agree and Join to join the event.

Notes: 

• The page will not show up again during the same event.
• Names and email addresses are not editable unless they are blank, in which case, the field will be blank. Then, the attendee must fill in this field before clicking Agree and Join.

1. Click the join link of the Zoom Event.
   When external authentication is enabled for the event, users will be redirected to a sign-in page on an external IDP website. The IDP is specified by the authentication profile.
2. Sign in to the IDP website.
   Users will be redirected to the event detail page and must complete a pre-join page to join the event.
3. On the pre-join page, view and/or enter the following information:
   • First Name
   • Last Name
   • Email Address: The email address received from the SSO provider will be displayed.
   • (Optional) Preferred email address: You can choose to provide a different email address.
   • (Optional) Registration questions: You can answer registration questions.
4. Review the Event Participant Terms of Use, Zoom's Privacy Statement and Terms of Service, and the host’s privacy notice (if provided). 
5. Click Agree and Join. 

Users will be redirected to the event lobby on a webpage.