True One-Page Embedded Checkout with Merchant-Controlled Fields & Prefill

We already collect customer information on our website before checkout. We would like Creem to support a true single-page embedded checkout where merchants can pass existing customer data (name, email, phone, city, country, billing details) and only ask the buyer for fields that are still required.

Ideally, merchants could:

• Prefill customer data collected before checkout.

• Choose which non-compliance fields are shown, hidden, optional, or required.

• Display customer details, billing information, and payment method on one page instead of multiple steps.

• Keep the full checkout embedded inside the merchant website.

• Customize branding and layout while Creem still enforces any tax/compliance-required fields.

• Receive the final customer and payment data through webhooks.

This would reduce duplicate data entry, checkout friction, and abandonment, especially for merchants who already have a registration or lead form before payment.