Automatic Invoice Generation and Email with Airtable and CustomJS PDF Generator

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> ⚠️ Notice: > This workflow uses the CustomJS Invoice Generator node from customjs.space, which requires a self-hosted n8n instance and a CustomJS API key. Google Spreadsheet → Invoice Generation → Email Workflow This workflow demonstrates how to: Pull invoices ready to be sent from Airtable. Retrieve client details and invoice items from Airtable. Generate a professional invoice PDF using CustomJS Invoice Generator. Send the completed invoice via email to the client. Update