Require Users to Log In with SSO - Sale…
https://help.salesforce.com/s/articleView?id=sf.sso_enforce_sso_login.htm&language=en_US&type=5
In Setup, in the Quick Find box, enter Single Sign-On, then select Single Sign-On Settings. Click Edit. In Delegated Authentication, select Disable login with Salesforce credentials, then save your changes. Enable SSO at the profile level.
In Setup, in the Quick Find box, enter Single Sign-On, then select Single Sign-On Settings.
Click Edit.
In Delegated Authentication, select Disable login with Salesforce credentials, then save your changes.
Enable SSO at the profile level.
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