Create and send multi-item PayPal invoices via email
### Who Is This For?
Small businesses, consultants, agencies… anyone who bills with PayPal.
### What Problem Does It Solve?
Automates itemized invoicing and delivery via PayPal’s Invoicing API with support for an “Add more items?” loop.
### What This Workflow Does
1. Collects your PayPal credentials & invoice data via a form
2. Dynamically generates a timestamp + random 4 digit number for the invoice_number
3. Calls PayPal to create and then send the invoice
4. Supports endless line-items via a Switch + Merge loop.
### Setup
1. Grab a PayPal REST App’s Client ID & Secret.
2. Toggle “Live or Test” to point at production vs sandbox.
3. **PayPal Credentials**
- If you select **Test**, this workflow points at PayPal’s **sandbox** (`api-m.sandbox.paypal.com`) and **requires your sandbox** Client ID & Secret.
- If you select **Live**, it points at PayPal’s **production** endpoint (`api-m.paypal.com`) and **requires your live** Client ID & Secret.
4. (Optional) Customize your logo, currency, default notes.
### How to Customize
– Change the currency dropdown
– Tweak the invoice-number format in the “Set Invoice Number and Date” code node
– Swap out or style the n8n Form nodes for your own UX
