Send weekly invoice summaries and overdue alerts from Google Sheets via Gmail and Slack — n8n Workflow

Medium complexity⏰ Scheduled7 nodes🏷️ Invoice Processingby Anwar Bouilouta

Overview

Most small businesses track invoices in Google Sheets, but nobody actually looks at the spreadsheet until cash flow gets tight. By then, invoices that should have been chased weeks ago are sitting there unpaid. This workflow gives you an automatic weekly report and alerts you when anything is overdue.

Who is this for

Freelancers, agencies, and small businesses that track invoices in Google Sheets and want a hands-off way to stay on top of what's been paid, what hasn't, and what's late.

How it

Nodes used

Google SheetsSlackGmailCode

Workflow Preview

Send weekly invoice summary with overdue aler
If you track invoices in a spreadsheet but nobody check
1. Weekly trigger
Fires every Monday at 9 AM. Edit the schedule if you wa
2. Your settings
Sheet ID, recipient email, Slack channel, business name
3. Pull the data
Grabs every row from your invoice spreadsheet.
4. Crunch the numbers
Adds up paid, unpaid, and overdue totals. Builds the em
5. Email report + Slack alert
The full summary gets emailed. If any invoices are over
⚡
E
Every Monday 9 AM
C
Configure Settings
Read All Invoices
Calculate Totals and Fin…
Email Weekly Summary
A
Any Overdue?
Alert Overdue to Slack
7 nodes6 edges

How it Works

  1. 1

    Trigger

    The workflow starts with a scheduled trigger, running on a defined schedule.

  2. 2

    Process

    Data flows through 7 nodes, connecting code, gmail, googlesheets.

  3. 3

    Output

    The workflow completes its automation and delivers the result to the configured destination.

Node Details (7)

GO

Google Sheets

googleSheets

#1
SL

Slack

slack

#2
GM

Gmail

gmail

#3
CO

Code

code

#4

How to Import This Workflow

  1. 1Click Download JSON button on the right to save the workflow file.
  2. 2Open your n8n instance. Go to Workflows → New → Import from file.
  3. 3Select the downloaded send-weekly-invoice-summaries-and-overdue-alerts-from-google-sheets-via-gmail-and-slack file and click Import.
  4. 4Set up credentials for each service node (API keys, OAuth, etc.).
  5. 5Click Test Workflow to verify everything works, then activate it.

Or paste directly in n8n → Import from JSON:

{ "name": "Send weekly invoice summaries and overdue alerts from Google Sheets via Gmail and Slack", "nodes": [...], ...}

Integrations

codegmailgooglesheetsifscheduletriggersetslack

Get This Workflow

Download and import in one click

Download JSONView on n8n.io
Nodes7
Complexitymedium
Triggerscheduled
CategoryInvoice Processing

Created by

Anwar Bouilouta

Anwar Bouilouta

@anwar

Tags

codegmailgooglesheetsifscheduletriggersetslack
⚡

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