Automated stale user re-engagement system with Supabase, Google Sheets & Gmail

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Built this workflow because most of our users signed up, then vanished after 30 days. It runs daily, grabs those stale users from Supabase, updates a Google Sheet for tracking, and automatically se...

Best for

Social Media automation workflows
intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.scheduletrigger, n8n-nodes-base.httprequest, n8n-nodes-base.set, n8n-nodes-base.manualtrigger, n8n-nodes-base.removeduplicates, n8n-nodes-base.googlesheets, n8n-nodes-base.gmail, @n8n/n8n-nodes-langchain.lmchatgooglevertex

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by iamvaar.

Original n8n.io source

1.1 Workflow description

Title: Automated stale user re-engagement system with Supabase, Google Sheets & Gmail
Workflow name: Automated stale user re-engagement system with Supabase, Google Sheets & Gmail

Built this workflow because most of our users signed up, then vanished after ~30 days. It runs daily, grabs those stale users from Supabase, updates a Google Sheet for tracking, and automatically sends each one a personalized HTML email through Gmail to bring them back.

All fully automated — so once it’s set up, it quietly does its job in the background. Currently, it only supports Supabase, but the concept should work with any DB or API if you swap out the request node.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.2

Block 2 - HTTP Request

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 3 - Edit Fields

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 4 - When clicking ‘Execute workflow’

Type / Role: n8n-nodes-base.manualTrigger - manualTrigger
Config choices: Version 1

Block 5 - Remove Duplicates

Type / Role: n8n-nodes-base.removeDuplicates - removeDuplicates
Config choices: Version 2

Block 6 - Clear sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 7 - Send a message

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 8 - Google Vertex Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatGoogleVertex - lmChatGoogleVertex
Config choices: Version 1

Block 9 - Update Google Sheet with Leads

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 10 - AI Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2

Block 11 - Code

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 12 - Structured Output Parser

Type / Role: @n8n/n8n-nodes-langchain.outputParserStructured - outputParserStructured
Config choices: Version 1.3

Block 13 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 14 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Automated stale user re-engagement system with Supabase, Google Sheets & Gmail
Complexity	intermediate
Nodes	14
Categories	Social Media
Author	iamvaar
Published	02 Jul 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/5603/5603.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Social Media workflows

Frequently asked questions

What does Automated stale user re-engagement system with Supabase, Google Sheets & Gmail do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Social Media use case.

iamvaar

38 workflows

Nodes

n8n-nodes-base.scheduletrigger n8n-nodes-base.httprequest n8n-nodes-base.set n8n-nodes-base.manualtrigger n8n-nodes-base.removeduplicates n8n-nodes-base.googlesheets n8n-nodes-base.gmail @n8n/n8n-nodes-langchain.lmchatgooglevertex

Complexity

intermediate

Published 02 Jul 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/5603/5603.json

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Automated stale user re-engagement system with Supabase, Google Sheets & Gmail

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Block 2 - HTTP Request

Block 3 - Edit Fields

Block 4 - When clicking ‘Execute workflow’

Block 5 - Remove Duplicates

Block 6 - Clear sheet

Block 7 - Send a message

Block 8 - Google Vertex Chat Model

Block 9 - Update Google Sheet with Leads

Block 10 - AI Agent

Block 11 - Code

Block 12 - Structured Output Parser

Block 13 - Sticky Note

Block 14 - Sticky Note1

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions