Review and approve Google Sheets orders by email and notify via LINE
Automatically processes new orders added to Google Sheets. Small orders are approved instantly; large orders trigger an HTML email with one-click Approve / Reject links — each handled by an independent webhook, so multiple orders can be reviewed simultaneously without blocking each other. What makes this different Unlike Wait-node designs that block when multiple orders queue up, this workflow uses a stateless token pattern: each order gets a unique token written back to the sheet. Approval link
At a glance
Review and approve Google Sheets orders by email and notify via LINE is a ready-made n8n workflow you import as a workflow JSON file — no build required. It connects Gmail, Google Sheets. It's free to download. Follow the 5-step import below to go live in minutes.
- Platform
- n8n
- Connects
- Gmail, Google Sheets
- Modules
- 28
- Price
- Free
- Version
- v1.0

About this workflow
Automatically processes new orders added to Google Sheets. Small orders are approved instantly; large orders trigger an HTML email with one-click Approve / Reject links — each handled by an independent webhook, so multiple orders can be reviewed simultaneously without blocking each other. What makes this different Unlike Wait-node designs that block when multiple orders queue up, this workflow uses a stateless token pattern: each order gets a unique token written back to the sheet. Approval links carry the token; the handler validates it on every click — safe, idempotent, and fully concurrent. Key features - Google Sheets Trigger polls for new rows automatically — no external caller needed - Configurable approval threshold (default: 500) - Duplicate-processing guard: skips rows that already have a status - One-click Approve / Reject email with styled HTML buttons - Token validation: tampered or expired links return a 403 error page - Already-processed guard: clicking the same link twice shows a friendly message - LINE push notification for every outcome (auto-approved, approved, rejected) - All results written back to Google Sheets with a reviewedAt timestamp Integrations Google Sheets · Gmail · LINE Messaging API · n8n Webhook Required sheet columns orderId · customerName · amount · approvalToken · status --- 💡 Want more automation templates? 👉
How to import this n8n workflow
- 1
Download the workflow JSON file after purchase.
- 2
Open n8n → click the menu → Import from File.
- 3
Select the downloaded JSON and import.
- 4
Set up credentials for each node that requires them.
- 5
Click Execute Workflow to test, then activate.
Setup guide
Setup guide included
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- JSON blueprint — instant download
- Setup guide PDF included
- 5 downloads · valid 30 days
- Works with n8n
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