New Install, Existing Members, Stripe Renewal

We have converted from a custom code registration and payment system to S2Member using Stripe.
None of our users have any data in the " s2Member Configuration & Profile Fields" section.

We manually set the users to appropriate membership levels and will force an EOT for them depending upon their current expiration date.

We will be using Stripe from here on out for billing. Since the current members are already paid up, what do we set any of those fields to? My issue is that if one of those users logs in now and wants to renew, Stripe says that they are not a paid user. They do not have a Stripe Subscriber ID, etc. How do we get Stripe to ask for their needed information initially to renew access to our site, when they are not current Stripe users yet?

Maybe explain to the users that your new payment system can’t recognise them.

Another way is to change the message, somehow…