Supern8n LogoSupern8n

Auto Invoice with PDF & Email Delivery

Automate invoice creation, approval, and delivery, saving time and ensuring prompt customer billing.

An end-to-end solution for generating invoices, securing finance approval, and sending finalized PDFs directly to customers.

Gmail
$29
Ready-to-use workflow template
Complete workflow template
Setup documentation
Community support

Documentation

⚙️ Workflow Steps

  1. Form Trigger (Invoice Submission)
    • Starts when a new invoice form is submitted.
    • Captures details like customer name, invoice number, items, and amounts.
  2. Code Node (HTML Invoice Creation)
    • Generates a styled HTML invoice using the form data.
    • Formats line items, totals, and company branding.
  3. Gmail Node (Approval Request)
    • Sends the generated invoice to the finance approver.
    • Approver can accept or reject.
  4. Switch Node (Approval Decision)
    • Routes workflow depending on finance’s decision.
    • If approved → continue to PDF generation.
    • If rejected → stop process or notify HR/issuer.
  5. PDF.co Node (HTML → PDF Conversion)
    • Converts the HTML invoice into a PDF file.
  6. HTTP Request Node (Download PDF)
    • Retrieves the generated PDF for email attachment.
  7. Gmail Node (Send Final Invoice)
    • Sends approved invoice PDF to the customer.
    • CCs the finance team for record-keeping.

✅ Key Benefits

  • Streamlined Invoice Processing: Automates invoice creation and delivery with minimal manual work.
  • Built-in Approval Workflow: Ensures finance validates invoices before sending.
  • Professional Output: Generates consistent, branded PDF invoices for clients.

Workflow Details

Last Updated:Dec 16, 2025
Creator:Prism Automation
Organization:

Frequently Asked Questions