n8n Build of the Week — Week 3

Free n8n Invoice Chaser
Starter Template

Week 3 of the 7-week live build. Still unpaid at day 14? A firmer second notice now goes out on its own, and the tracking sheet flips that row to Second Notice — import the 7-node template and you're fully up to date.

Download the Week 3 Template n8n workflow JSON · free · no email required · earlier steps: Week 1 · Week 2
What's inside

Seven nodes. Two touches. Zero remembering.

Week 3 adds the escalation on top of the Week 1 base and the Week 2 log. Day 7 is a polite nudge. If the invoice is still open on day 14, a firmer second notice goes out by itself and the tracking sheet flips that row to Second Notice. Import this and you have all three weeks in one workflow.

Node 01

Invoice Trigger

Connects to a Google Sheets row or your invoicing tool. The moment a new invoice appears, the workflow wakes up.

Node 02 · New this week

Invoice Log

A Google Sheets node appends every invoice to a tracking tab before anything else happens — so nothing ever slips through unrecorded.

Node 03

7-Day Wait

A Wait node holds the flow for exactly 7 days after the invoice date. No cron jobs, no external schedulers needed.

Node 04

Email Reminder

Sends a polite, professional payment reminder automatically. You never have to write or schedule the follow-up.

Node 05 · New this week

7 More Days

A second Wait node picks up where the first reminder left off. If nothing has been paid by day 14, the flow keeps going.

Node 06 · New this week

Second Notice

Same invoice, firmer wording. It names the due date, states the invoice is 14 days past due, and asks for a payment date — still professional, no chasing from you.

Node 07 · New this week

Status Update

A Google Sheets update matches the row on Invoice Number and writes Second Notice to its Status column — so a glance at the tab tells you where every invoice stands.

Getting started

Import and run in four steps.

No coding required. If you have an n8n account (self-hosted or cloud), you're ready to go.

1. Download the JSON

Click the button above. You'll get an n8n workflow JSON file.

2. Import into n8n

In your n8n canvas, click +Import from File and select the JSON.

3. Connect your sheets

Point the trigger at your invoice tab, and the log + status nodes at a tracking tab with a Status column.

4. Activate

Toggle the workflow on. The next invoice row triggers it automatically — no further action needed.

The full build

7 weeks. One complete invoice chaser.

Each Monday a new step drops — follow along on LinkedIn, Instagram, TikTok, or Facebook. The finished 7-node template will be free at the end.

01
The base template Invoice trigger → 7-day wait → email reminder. The 3-node foundation.
Week 1 · Done
02
Never lose track — log every invoice A Sheets node auto-logs every invoice before the first reminder fires.
Week 2 · Done
03
Escalating reminders — gentle first, firmer second ← you are here Two-touch escalation: friendly at day 7, firmer at day 14. Status flips to Second Notice automatically.
Week 3 · Live
04
Auto-close when paid — the payment listener Webhook or polling node detects payment and stops all reminders. Invoice marked PAID.
Coming
05
Know the moment something is overdue — owner alert Slack or Telegram ping the moment an invoice hits 30 days unpaid.
Coming
06
Make it bulletproof — error handling An error branch catches any node failure and alerts you instead of silently dropping an invoice.
Coming
07
The finished build — and it's yours Full 7-node workflow recap + the complete free template. Comment INVOICE to get it.
Finale · Free template

Want this built for your business?

If you'd rather have the full invoice chaser set up and running — connected to your tools, tested, handed over — that's what we do at Genesis Web Digital.