Products using the Broadcom SSO are redirected to a configured Identity Provider (IdP) after another Broadcom product is configured to use an Identity Provider.
All Broadcom Security cloud products use the same SSO implementation https://login.broadcom.com/
All Broadcom Security products use a shared SSO: https://login.broadcom.com/
When Symantec Endpoint Security Complete or another product creates an IDP configuration for example.com it tells the SSO instance that all attempted logins where the username is from the domain configured (eg example.com) need to get redirected to their configured IDP. Because of that when one product configures an IDP it becomes a global setting for all Broadcom products.