You can now pass customer information directly through query parameters in your payment link URL.

Previously, prefilled fields had to be configured inside each payment link. That worked well for static setups, but made it harder to reuse the same link across multiple customers.

Now you can generate personalized checkout sessions from your own system without creating new payment links.

With query parameters, you can:

• prefill customer data like email, name, phone number, and address
• set the checkout language automatically
• apply coupon codes directly from the link
• attach custom metadata for tracking campaigns or external references
• reuse the same payment link across multiple customers

This makes payment links easier to integrate into CRMs, automations, and campaign workflows while keeping checkout faster for your customers.

Requested by merchants building dynamic payment link flows.

Available now in all payment links

Try it here
https://my.rebill.com/en/payment-links