Please enter specific authentication context SAML IdP uses. The default value is None. Check with the IdP administrators to find out which authentication contexts are available..
Authentication Context examples are:

• None
• urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport
• urn:oasis:names:tc:SAML:2.0:ac:classes:unspecified
• urn:oasis:names:tc:SAML:2.0:ac:classes:password

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