Azure B2C Re authenticate user depending on Interface navigation

You could simply ping the /me endpoint using the Graph API by using Oauth code grant.

https://learn.microsoft.com/en-us/graph/api/user-get?view=graph-rest-1.0&tabs=http

https://docs.appian.com/suite/help/24.1/Oauth_connected_system.html

To force them to reauthorize, you could invalidate the sign in sessions.

https://learn.microsoft.com/en-us/graph/api/user-revokesigninsessions?view=graph-rest-1.0&tabs=http

Hope this helps.

I have the same kind of requirement for 2 months. I have checked with Appian support. Appian support mentioned that Azure B2C will not supported by Appian. 

Please find the reply I got from the support team.

Unfortunately, Azure AD is currently not a supported authentication method within Appian. The only supported authentication methods for connected data sources are basic authentication and OAUTH. For more information, please refer to our documentation on data source connected systems and authentication methods linked below: Data Source Connected Systems: docs.appian.com/.../data-source-connected-systems.html Authentication Methods: docs.appian.com/.../connected_system_authentication.html If you would like, I am happy to create a product enhancement request on your behalf to request support for this authentication method. However, please note that these requests will be prioritized by our engineering team, and we are not able to provide a timeline on when or if they will be implemented. Please review the following documentation on product enhancement requests and provide me with the necessary information if you would like to create one. community.appian.com/.../kb-1717-how-to-submit-a-product-enhancement-request