AI Invoice Agent: Automate Billing with AI Emails & PDFs
Automates invoice processing by fetching pending invoices from Google Sheets, generating AI-drafted professional emails, creating PDFs, sending via Gmail, and updating statuses.
The AI Invoice Agent streamlines client billing by automating the entire invoice lifecycle. Starting with a manual trigger, it pulls pending invoices from a Google Sheet, filters for 'Pending' status, and formats key details like client info, amounts, dates, and due dates. A loop processes each invoice individually, leveraging GPT-4.1-mini to craft polite, business-oriented email drafts signed by the team.
Next, it extracts the email subject and body, generates a professional PDF invoice using
- Platform
- n8n
- Category
- Internet of Things
- Price
- $24.99
- Creator
- Fred Garcia
- invoice
- automation
- AI
- Google Sheets
- Gmail
- billing
- CraftMyPDF
- OpenAI
How to import this workflow into n8n
- 1Purchase or download the workflow to get the n8n workflow JSON file.
- 2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
- 3Open each node marked with a credential warning and connect your own accounts and API keys.
- 4Run the workflow once manually to verify the data flow, then toggle it to Active.
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