Is it Possible to Add Custom Fields to the Stripe Checkout Page via Memberstack?

At this time, Memberstack does not allow for direct custom field additions to the Stripe checkout page. However, you can incorporate custom fields into the signup form before a member opts for a plan. Additionally, you can use a profile form to update custom fields after purchase. For guidance on setting up a profile form in Webflow, check out this article. 

Should you have any more inquiries or need further assistance, feel free to reach out by submitting a Support Request.