Automated PayPal Invoice Generation for Multiple Items

This n8n workflow automates the process of creating and dispatching invoices via PayPal, including dynamic item management directly from user input. It begins by collecting invoice details through forms, allowing the addition of multiple line items with a loop mechanism. The workflow encodes PayPal API credentials, fetches an OAuth token, and constructs the invoice JSON dynamically, accommodating multiple items. Once the invoice is prepared, it is sent to PayPal for creation, and a preview URL is generated for review. Finally, the invoice is dispatched via PayPal automatically. This automation streamlines billing for service providers, freelancers, or businesses that manage multiple line items regularly, saving time and reducing errors.