Hi @Andy Hagan • Thank you for reaching out.
Unfortunately, Azure MFA does NOT include the capability of settings a specific Authentication Method for a particular application.
There is Authentication Method Policy but that can only be used to define users or groups that are enabled to use the Authenticator App
authentication method and not the authentication method for applications.
I would suggest you post an idea regarding this at the User Voice portal, which is monitored by the product group for feature enhancements.
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