First, authentication methods typically don't conflict with your application. Web Forms authentication is usually validated in the form of cookies.
As for how to migrate your application to token-based authentication. The first thing to look at is how the token is validated. Each token has its own unique way of programming. The second thing to see is whether the token supports your framework.
These things are required according to the certificate documentation.
I think the following documentation will be helpful to you.
Finally, I would like to say that there is a problem with the functional impact during the migration process. My conclusion above is that there is basically no impact. However, it is not excluded that some data is shared by your function and validation. So I think it's important to test your code well before migrating.
Best Regards
Qi You
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