
DavidM.02996 (Customer) asked a question.
We're trying to write an authentication policy with a rule that restricts which methods can be used for Authentication Methods.
There's an option to "Allow Specific Authentication Methods" however the list is missing some of our possession factors.
I've configured two IdP's as factor-only and when I choose "Allow Specific Authentication Methods" only one of those IdP's shows up in the list. Nevertheless, the box below this that shows "Your org's authenticators that satisfy this requirement" it lists both IdP. I am trying to write the authentication policy so that it uses one (and only one) of those IdPs to satisfy the second factor for authentication. Is this possible?

Hello @DavidM.02996 (Customer) Thank you for posting on our Community page!
If you use the option "Allow specific authentication methods" then only the methods selected will be used for Authentication, as per our doc :
"Allow specific authentication methods: Select methods to allow them to be used in authentication. When this option is selected, all available methods are disallowed unless added to the allow list."
https://help.okta.com/oie/en-us/content/topics/identity-engine/policies/add-app-sign-on-policy-rule.htm
Thank you for reaching out to our Community and have a great day!
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Hey Paul - thanks for the reply. "Allow specific authentication methods" only seems to restrict to types of authentication methods and not specific Authenticators. You can see this in three ways:
Wanted to chime in re: my experiencing the exact same thing (and apparently quite timely being only 3 days later). I just opened a support case attempting to figure another approach and/or workaround to the issue. *MY* challenge is we use Duo Security for MFA. Currently Okta app in Duo allows several factors we need for certain users but wish to disallow for others. My workaround attempt was to configure a 2nd Duo idP that tied back to a 2nd Okta app in Duo that was more restrictive w/ factors. Unfortunately the Okta Authentication Policy is not allowing me to restrict which of the two idPs are actually called. It keeps just using the 1st one. If anyone knows of a better way to approach this challenge I'd really appreciate if you shared it.