Run a weekly n8n security audit and email changes with Supabase and Gmail

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1. Workflow Overview

How it works If your main Error Diagnosis workflow fails for any reason, this backup workflow sends an alert email to the workflow owner. For a (main) advanced and automated error diagnosis workflo...

Best for

SecOps automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.scheduletrigger, n8n-nodes-base.supabase, n8n-nodes-base.code, n8n-nodes-base.if, n8n-nodes-base.gmail, n8n-nodes-base.n8n

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Run a weekly n8n security audit and email changes with Supabase and Gmail
Workflow name: Run a weekly n8n security audit and email changes with Supabase and Gmail

How it works

If your main Error Diagnosis workflow fails for any reason, this backup workflow sends an alert email to the workflow owner.

For a (main) advanced and automated error diagnosis workflow check: ++flowcheckers.com++

Node 1 - Backup Error Trigger No configuration needed. Fires automatically when the main workflow encounters an unhandled error.

Node 2 - Internal alert notification Sends an alert email to the workflow owner when the main diagnosis workflow fails. The email contains the error details, the workflow name, and a link to the failed execution in n8n so the owner can investigate immediately.

Setup

Import backup-error-workflow.json into your n8n instance
Connect the Resend credential inside the Resend node (Important: the From address must be a domain verified in Resend, otherwise the send will be rejected)
Link this workflow as the Error Workflow of the main diagnosis workflow
Confirm the workflow is saved

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 - Setup Instructions

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

Block 2 - Note Step 1

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

Block 3 - Note Step 2

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

Block 4 - Note Step 3

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

Block 5 - Note Step 4

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

Block 6 - Note Step 5

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

Block 7 - Note Step 6

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

Block 8 - Note Step 7

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

Block 9 - Every Monday 09:00

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

Block 10 - Fetch Previous Audit

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

Block 11 - Compare Audits

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

Block 12 - Store Audit Result

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

Block 13 - Any New Findings?

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

Block 14 - Send Alert Email

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

Block 15 - Generate a security audit

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

3. Summary Table

Workflow	Run a weekly n8n security audit and email changes with Supabase and Gmail
Complexity	advanced
Nodes	15
Categories	SecOps
Author	Flowcheckers
Published	21 May 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/15884/15884.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 SecOps workflows

Frequently asked questions

What does Run a weekly n8n security audit and email changes with Supabase and 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 SecOps use case.

Flowcheckers

3 workflows

Nodes

n8n-nodes-base.stickynote n8n-nodes-base.scheduletrigger n8n-nodes-base.supabase n8n-nodes-base.code n8n-nodes-base.if n8n-nodes-base.gmail n8n-nodes-base.n8n

Complexity

advanced

Published 21 May 2026

Likes 0

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Install path: /data/workflows/15884/15884.json

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Run a weekly n8n security audit and email changes with Supabase and Gmail

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How it works

Setup

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Setup Instructions

Block 2 - Note Step 1

Block 3 - Note Step 2

Block 4 - Note Step 3

Block 5 - Note Step 4

Block 6 - Note Step 5

Block 7 - Note Step 6

Block 8 - Note Step 7

Block 9 - Every Monday 09:00

Block 10 - Fetch Previous Audit

Block 11 - Compare Audits

Block 12 - Store Audit Result

Block 13 - Any New Findings?

Block 14 - Send Alert Email

Block 15 - Generate a security audit

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