IPN and PDT variablesAPILegacyLast updated: December 12th 2023, @ 9:31:44 am Important: NVP/SOAP is a legacy integration method. We accept new integrations and support existing integrations, but there are newer solutions. If you're starting an integration, we recommend our latest solutions. PayPal returns variables for the following message types: Instant Payment Notification (IPN)Payment Data Tra