This n8n workflow automates email blasts with follow-ups and response tracking by reading contact data from a Google Sheet daily, looping through contacts to send personalized emails based on follow-up stages via Gmail, updating the sheet with status changes, and monitoring replies for logging.

Why Use It

This workflow streamlines email marketing campaigns by automating personalized email distribution, managing follow-up sequences, and tracking responses without manual intervention, saving time, improving engagement, and providing actionable insights into contact interactions.

How to Import It

1. Download the Workflow JSON: Obtain the workflow file from the n8n template or create it based on this document.
2. Import into n8n: In your n8n instance, go to "Workflows," click the three dots, select "Import from File," and upload the JSON.
3. Configure Credentials: Set up Gmail and Google Sheets credentials in n8n.
4. Run the Workflow: Activate the scheduled trigger and test with a sample Google Sheet.

System Architecture

• Email Blast Pipeline:
  • Daily Trigger - 9 AM: Initiates the workflow daily at 9 AM via Cron.
  • Read Contact Data from Google Sheet: Fetches contact details from the sheet.
  • Loop Through Contacts: Processes each contact individually.
  • Determine Follow-Up Stage: Identifies the current stage for each contact.
  • Send Main/Follow-Up Email: Delivers the appropriate email via Gmail.
  • Update Sheet Status: Updates the Google Sheet with the latest status.
• Response Tracking Flow:
  • Check Gmail for Replies: Monitors Gmail for email responses.
  • Log Responses: Records responses in the Google Sheet.

Google Sheet File Structure

• Sheet Name: EmailCampaign
• Range: A1:F10 (or adjust based on needs)

| A | B | C | D | E | F | |------------|------------|---------------|---------------|---------------|---------------| | name | email | stage | last_email_date | status | response | | John Doe | john@example.com | Initial | 2025-08-07 | Pending | | | Jane Smith | jane@example.com | Follow-Up 1 | 2025-08-06 | Sent | "Interested" | | Bob Jones | bob@example.com | Follow-Up 2 | 2025-08-05 | Replied | "Follow up later" |

• Columns:
  • name: Contact’s full name.
  • email: Contact’s email address for sending emails.
  • stage: Current follow-up stage (e.g., Initial, Follow-Up 1, Follow-Up 2).
  • last_email_date: Date of the last email sent.
  • status: Current status (e.g., Pending, Sent, Replied).
  • response: Logged response from the contact (updated after reply detection).

Customization Ideas

• Adjust Schedule: Change the Cron trigger to hourly or weekly based on campaign needs.
• Add Email Templates: Customize email content for different stages or audiences.
• Incorporate SMS: Add WhatsApp or SMS follow-ups using additional nodes.
• Enhance Tracking: Integrate a dashboard (e.g., Google Data Studio) for real-time campaign analytics.
• Automate Segmentation: Add logic to segment contacts by industry or interest for targeted emails.

Requirements to Run This Workflow

• Google Sheets Account: For storing and managing contact data and responses.
• Gmail Account: For sending emails and checking replies (requires IMAP enabled).
• n8n Instance: With Google Sheets and Gmail connectors configured.
• Cron Service: For scheduling the daily trigger.
• Internet Connection: To access Google Sheets and Gmail APIs.
• API Credentials: Gmail OAuth2 and Google Sheets API credentials set up in n8n.

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Notes

• Ensure the Google Sheet is shared with the n8n service account or has appropriate permissions.
• Test the workflow with a small contact list to verify email delivery and response logging.
• Adjust the stage logic in the "Determine Follow-Up Stage" node to match your campaign structure.