This article provides a complete, practical walkthrough of the Manual Gmail Create Triggered n8n agent. It connects HTTP Request, Webhook across approximately 1 node(s). Expect a Intermediate setup in 15-45 minutes. One‑time purchase: €29.

What This Agent Does

This agent orchestrates a reliable automation between HTTP Request, Webhook, handling triggers, data enrichment, and delivery with guardrails for errors and rate limits.

It streamlines multi‑step processes that would otherwise require manual exports, spreadsheet cleanup, and repeated API requests. By centralizing logic in n8n, it reduces context switching, lowers error rates, and ensures consistent results across teams.

Typical outcomes include faster lead handoffs, automated notifications, accurate data synchronization, and better visibility via execution logs and optional Slack/Email alerts.

How It Works

The workflow uses standard n8n building blocks like Webhook or Schedule triggers, HTTP Request for API calls, and control nodes (IF, Merge, Set) to validate inputs, branch on conditions, and format outputs. Retries and timeouts improve resilience, while credentials keep secrets safe.

Third‑Party Integrations

• HTTP Request
• Webhook

Import and Use in n8n

1. Open n8n and create a new workflow or collection.
2. Choose Import from File or Paste JSON.
3. Paste the JSON below, then click Import.
4. Show n8n JSON

   Title:  
   Streamline Gmail Inbox Management with n8n: Automatically Reassign Email Labels
   
   Meta Description:  
   Learn how to automate Gmail email label management using n8n. This step-by-step workflow fetches emails by label, removes the old label, and adds a new one — improving productivity and inbox organization.
   
   Keywords:  
   n8n email automation, Gmail label workflow, Gmail automation, reassign Gmail labels, Gmail message management, workflow automation Gmail, Gmail n8n tutorial, automate Gmail with n8n, productivity tools, Gmail API n8n
   
   Third-Party APIs Used:  
   - Gmail API (via n8n's Gmail OAuth2 integration)
   
   Article:
   
   📬 Supercharge Label Management in Gmail with n8n
   
   Email organization is essential to productivity, and Gmail’s labeling system can be a powerful tool—if used correctly. But when email volume increases, manual label management becomes tedious. That's where automation steps in.
   
   In this article, we’ll explore a simple but effective n8n workflow designed to streamline how you manage Gmail labels. Specifically, this workflow:
   
   - Fetches Gmail messages with a specific label,
   - Removes that label,
   - Then replaces it with a new one.
   
   This is especially useful if your labeling logic evolves—like when transitioning projects, updating workflows, or reorganizing your inbox structure.
   
   Let’s dive deeper into how it works.
   
   🎯 What This Workflow Does
   
   The n8n workflow we're examining automates the process of:
   
   1. Manually triggering an execution,
   2. Fetching all Gmail messages tagged with a specific label (for example, Label A),
   3. Removing Label A from those messages,
   4. Adding a different label (Label B) to them.
   
   It’s a practical use case that marries Gmail’s robust API functionality with n8n’s powerful no-code automation capabilities.
   
   📌 Step-by-Step Breakdown
   
   Let’s walk through each node in the n8n workflow:
   
   1. Manual Trigger ("On clicking 'execute'")
      - This node serves as the entry point to the workflow.
      - It allows you to manually initiate the automation for instant results—ideal for testing or one-off batch operations.
   
   2. Gmail Node (Fetching Messages)
      - Resource: message
      - Operation: getAll
      - Additional Field: labelIds set to the old label (e.g., Label_103811885290186237)
      - This node uses the Gmail API to fetch all messages with a specific label. It collects full message data for each email that needs to be updated.
   
   3. Gmail Node (Removing the Old Label)
      - Resource: messageLabel
      - Operation: remove
      - labelId: The same old label
      - messageId: Dynamically pulled from the previous node
      - This effectively un-tags the email so it no longer falls under the old categorization.
   
   4. Gmail Node (Adding the New Label)
      - Resource: messageLabel
      - Operation: add (default behavior)
      - labelId: The new label (e.g., Label_140673791182006844)
      - messageId: Same dynamic reference
      - Here, the email is reassigned under a new label for better organization.
   
   This simple sequence ensures that messages flow through a controlled transition—from an outdated category to a current one—without manual intervention.
   
   🔐 Authentication
   
   This automation requires Gmail OAuth2 credentials to be pre-set in n8n. Once authorized, n8n has full access (as allowed by scopes) to interact with your Gmail messages.
   
   💡 Use Cases
   
   ✔️ Project Handover: Automatically shift emails from "In Progress" to "Completed" labels  
   ✔️ Workflow Refinement: Retag legacy communications as priorities shift  
   ✔️ Inbox Decluttering: Batch-update old tags to align with a new structure  
   ✔️ Task Management Sync: Label shift emails based on Trello or Asana project stages (with multi-node n8n flows)
   
   📚 Prerequisites
   
   To use this workflow effectively, make sure:
   - n8n is properly installed and running,
   - Gmail OAuth2 is connected,
   - The labels (old and new) have been created in your Gmail account,
   - You know the label IDs (these can be identified from the Gmail API or fetched via n8n’s Gmail node).
   
   You can always integrate this workflow with other triggers (like a schedule or webhook) to automate the labeling at broader scales or as part of a more complex email processing pipeline.
   
   🚀 Final Thoughts
   
   This n8n workflow demonstrates just how effortless and powerful it can be to automate mundane email tasks. With just four nodes, you can reclaim hours of manual sorting time and ensure your Gmail labels reflect your evolving needs.
   
   Inbox organization shouldn't be a burden—and with tools like n8n, it no longer has to be.
   
   Now imagine coupling this with other automated workflows: auto-responding to certain labels, forwarding to teams, or syncing with your CRM.
   
   The possibilities are endless.
   
   Start building smarter, not harder—with n8n and Gmail.
   
   —
   
   Want to try this workflow? Just copy and paste the JSON into your n8n instance and connect your Gmail credentials to get started.
   
   Happy automating!

5. Set credentials for each API node (keys, OAuth) in Credentials.
6. Run a test via Execute Workflow. Inspect Run Data, then adjust parameters.
7. Enable the workflow to run on schedule, webhook, or triggers as configured.

Tips: keep secrets in credentials, add retries and timeouts on HTTP nodes, implement error notifications, and paginate large API fetches.

Validation: use IF/Code nodes to sanitize inputs and guard against empty payloads.

Why Automate This with AI Agents

AI‑assisted automations offload repetitive, error‑prone tasks to a predictable workflow. Instead of manual copy‑paste and ad‑hoc scripts, your team gets a governed pipeline with versioned state, auditability, and observable runs.

n8n’s node graph makes data flow transparent while AI‑powered enrichment (classification, extraction, summarization) boosts throughput and consistency. Teams reclaim time, reduce operational costs, and standardize best practices without sacrificing flexibility.

Compared to one‑off integrations, an AI agent is easier to extend: swap APIs, add filters, or bolt on notifications without rewriting everything. You get reliability, control, and a faster path from idea to production.

Best Practices

• Credentials: restrict scopes and rotate tokens regularly.
• Resilience: configure retries, timeouts, and backoff for API nodes.
• Data Quality: validate inputs; normalize fields early to reduce downstream branching.
• Performance: batch records and paginate for large datasets.
• Observability: add failure alerts (Email/Slack) and persistent logs for auditing.
• Security: avoid sensitive data in logs; use environment variables and n8n credentials.

FAQs

Can I swap integrations later? Yes. Replace or add nodes and re‑map fields without rebuilding the whole flow.

How do I monitor failures? Use Execution logs and add notifications on the Error Trigger path.

Does it scale? Use queues, batching, and sub‑workflows to split responsibilities and control load.

Is my data safe? Keep secrets in Credentials, restrict token scopes, and review access logs.