We have an old ASP.NET MVC application that is running on .NET 4.6 using SQL Server with connectivity established through ADO.NET and for login using forms authentication by generating a FormsAuthenticationTicket.
But now we want our organization users to be able to login using their MS 365 accounts but for external users the existing mechanism of logging in should keep working.
I updated the web app to .NET 4.8 as per directive available at https://learn.microsoft.com/en-us/entra/identity-platform/quickstart-web-app-aspnet-sign-in . In order to enable this I have to disable the forms authentication which I did.
But how do I generate claim and authorize external users by validating their credentials from local database. Even after using multiple methods the system doesn't log these users.
Thanks
I followed the code available at https://learn.microsoft.com/en-us/entra/identity-platform/quickstart-web-app-aspnet-sign-in