Detect early payment invoice opportunities with Groq and Google Sheets

by WeblineIndia ✓ · 27 views · created 2026-07-14 · Invoice Processing, AI Summarization

What this workflow does

This AI workflow has 15 nodes and runs on a schedule (every day at 09:00). Along the way it connects Groq Chat Model, Google Sheets and Gmail. It also calls api.npoint.io over HTTP.

How it runs

Trigger: On a schedule (every day at 09:00).

1. Fetch Invoice Data (HTTP Request): calls api.npoint.io
2. Calculate Discount ROI (Code): runs custom JavaScript code
3. Check Discount Eligibility (If): checks a condition and branches into true / false
4. Prepare Invoice Data (Edit Fields (Set)): sets 8 fields: vendor, amount, savings…
5. Mark Expired Invoices (Code): runs custom JavaScript code
6. AI Payment Decision Engine (AI Agent): runs an AI agent, with model: Groq AI Model
7. Save Expired Invoice Log (Google Sheets): append
8. Clean AI Response (Code): runs custom JavaScript code
9. Save Eligible Invoice Log (Google Sheets): append
10. Check High Priority Opportunity (If): checks a condition and branches into true / false

…plus 3 more steps. See the full node list below.

Services it uses

Groq Chat ModelGoogle SheetsGmail

HTTP calls to: api.npoint.io

Before you upgrade to n8n 3.0

Nodes used (10)

• Schedule Triggern8n-nodes-base.scheduleTrigger
• HTTP Requestn8n-nodes-base.httpRequest
• Coden8n-nodes-base.code
• Ifn8n-nodes-base.if
• Edit Fields (Set)n8n-nodes-base.set
• AI Agent@n8n/n8n-nodes-langchain.agent
• Groq Chat Model@n8n/n8n-nodes-langchain.lmChatGroq
• Google Sheetsn8n-nodes-base.googleSheets
• Aggregaten8n-nodes-base.aggregate
• Gmailn8n-nodes-base.gmail

From the author

Quick Overview This workflow runs daily to fetch invoice data from an HTTP endpoint, calculate early-payment savings and annualized ROI, and use Groq (Llama 3.3) to prioritize eligible discounts. It logs eligible and expired invoices to Google Sheets and…

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