Availability: PayPal supports these Invoicing integrations:
- Invoicing v2. Valid from April 2019 for new integrations.
- Invoicing v1. Valid before April 2019. Customers who use Invoicing v1 can access reference and support material in this integration guide. However, PayPal does not update this API with new features and enhancements.
Learn more about PayPal Invoicing features and functionality: