Paddle

Attribute Paddle Billing transactions.

1. Paddle → Developer tools → Notifications → New destination.
2. URL: https://api.realific.app/webhooks/paddle/YOUR_SITE_ID.
3. Subscribe to transaction.completed and adjustment.created.
4. Copy the secret key into Realific (Settings → Revenue → Paddle).

Pass customData: { realific_visitor_id } when opening Paddle Checkout.