Generate and validate bulk QR codes with Google Sheets and Google Drive

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1. Workflow Overview

This workflow allows you to generate QR codes (Barcodes) in bulk from a Google Sheets file and store the generated QR images automatically in Google Drive. Each QR code contains a unique identifier...

Best for

Document Extraction automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.manualtrigger, n8n-nodes-base.stickynote, n8n-nodes-base.if, n8n-nodes-base.googledrive, n8n-nodes-base.splitinbatches, n8n-nodes-base.respondtowebhook, n8n-nodes-base.httprequest, n8n-nodes-base.googlesheets

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Generate and validate bulk QR codes with Google Sheets and Google Drive
Workflow name: Generate and validate bulk QR codes with Google Sheets and Google Drive

When a QR code is scanned, the webhook checks whether the ID exists and verifies its status. The system updates the spreadsheet to reflect whether the QR code has been generated and whether it has already been used.

This template demonstrates a simple but practical QR lifecycle system:

Generate QR codes in bulk from spreadsheet data
Store QR images in Google Drive
Validate QR scans through webhook
Track generation and usage status directly in the spreadsheet

Example use cases include event check-in systems, access control, membership validation, digital ticketing, or controlled asset distribution.

The workflow is designed to be modular, easy to customize, and suitable for real-world implementation.

How it works

Set Up Google Sheets

Create a Google Sheets file with at least the following columns: email & status_qr.

The email column acts as the unique ID.

The status_qr column will automatically update to indicate:

QR_GENERATED
QR_USED

Make sure there are no duplicate email values.

Set Up Credentials

Google Sheets Credential
Google Drive Credential

Connect your Google account. Copy the Spreadsheet & Folder ID and configure it in the node.

Configure the QR Generator Workflow

Confirm the spreadsheet and sheet name are correctly selected.
Ensure the workflow checks the status_qr column before generating a QR code.
Only rows with empty status_qr will generate new QR codes.
Generated QR images will be uploaded automatically to the configured Google Drive folder.
The status_qr column will be updated to indicate that the QR has been generated.
Run the workflow to generate QR codes in bulk.

Configure the Validation Webhook

Set the workflow to activate.
Ensure the webhook URL matches the base URL embedded in the QR codes.

When a QR code is scanned:

The system extracts the email (ID).
It checks whether the email exists in the spreadsheet.
It verifies whether the QR has already been used. If valid, it updates status_qr to reflect usage.

Need Help?

Contact me on LinkedIn!

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 - When clicking ‘Execute workflow’

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

Block 2 - Sticky Note

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

Block 3 - Not used?

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 4 - Sticky Note1

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

Block 5 - Sticky Note5

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

Block 6 - Upload file

Type / Role: n8n-nodes-base.googleDrive - googleDrive
Config choices: Version 3

Block 7 - Loop Over Items

Type / Role: n8n-nodes-base.splitInBatches - splitInBatches
Config choices: Version 3

Block 8 - Sticky Note2

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

Block 9 - Sticky Note6

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

Block 10 - Sticky Note3

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

Block 11 - Not Valid

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.1

Block 12 - QR Generator

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

Block 13 - Update QR used

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 14 - QR ID Already Used

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.1

Block 15 - QR OK

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.1

Block 16 - Get List

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 17 - Get List ID

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 18 - Check is generated?

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 19 - Update Row Status QR Generated

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 20 - Check ID Exists

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 21 - QR Validation Webhook

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

Block 22 - Extract ID from Webhook

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

Block 23 - Prepare Status Update

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

Block 24 - Sticky Note4

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

3. Summary Table

Workflow	Generate and validate bulk QR codes with Google Sheets and Google Drive
Complexity	advanced
Nodes	24
Categories	Document Extraction
Author	Cahya
Published	13 Feb 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/13363/13363.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 Document Extraction workflows

Frequently asked questions

What does Generate and validate bulk QR codes with Google Sheets and Google Drive 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 Document Extraction use case.

Cahya

3 workflows

Nodes

n8n-nodes-base.manualtrigger n8n-nodes-base.stickynote n8n-nodes-base.if n8n-nodes-base.googledrive n8n-nodes-base.splitinbatches n8n-nodes-base.respondtowebhook n8n-nodes-base.httprequest n8n-nodes-base.googlesheets

Complexity

advanced

Published 13 Feb 2026

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/13363/13363.json

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Generate and validate bulk QR codes with Google Sheets and Google Drive

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How it works

Need Help?

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - When clicking ‘Execute workflow’

Block 2 - Sticky Note

Block 3 - Not used?

Block 4 - Sticky Note1

Block 5 - Sticky Note5

Block 6 - Upload file

Block 7 - Loop Over Items

Block 8 - Sticky Note2

Block 9 - Sticky Note6

Block 10 - Sticky Note3

Block 11 - Not Valid

Block 12 - QR Generator

Block 13 - Update QR used

Block 14 - QR ID Already Used

Block 15 - QR OK

Block 16 - Get List

Block 17 - Get List ID

Block 18 - Check is generated?

Block 19 - Update Row Status QR Generated

Block 20 - Check ID Exists

Block 21 - QR Validation Webhook

Block 22 - Extract ID from Webhook

Block 23 - Prepare Status Update

Block 24 - Sticky Note4

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