Add Script option in checkout customizer

[Customer Query] -

Please advise how to setup tracking in my Stripe account for referrals of subscribed affiliates.

We do have an "Add script" option that can be used via the checkout customizer feature to track the behavior of customers through the checkout & thank you page in Pabbly Subscription Billing. For reference, please check this doc - https://www.pabbly.com/subscriptions/docs/customize-checkout-page/#section12

However, we're not sure about Stripe gateway as such info needs to be checked from their end i.e. whether they support such feature or not. Therefore, we'll be unable to provide any advice on this.