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Sync new subscribers from Google Sheets to MailerLite without duplicates

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Sync new subscribers from Google Sheets to MailerLite without duplicates preview
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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

This n8n template from Intuz provides a complete solution to automate the syncing of new subscribers from Google Sheets to MailerLite. It intelligently identifies and adds...

Best for

  • Social Media automation workflows
  • Multimodal AI automation workflows
  • intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.googlesheets, n8n-nodes-base.mailerlite, n8n-nodes-base.httprequest, n8n-nodes-base.manualtrigger, n8n-nodes-base.stickynote, n8n-nodes-base.noop

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title
Sync new subscribers from Google Sheets to MailerLite without duplicates
Workflow name
Sync new subscribers from Google Sheets to MailerLite without duplicates

This n8n template from Intuz provides a complete solution to automate the syncing of new subscribers from Google Sheets to MailerLite. It intelligently identifies and adds only new contacts, preventing duplicates and ensuring your email lists are clean and accurate.

Who's this workflow for?

  • Marketing Teams
  • Email Marketers
  • Small Business Owners
  • Community Managers

How it works

1. Read from Google Sheets: The workflow begins by reading all contact rows from your designated Google Sheet.

2. Check for Existing Subscribers: For each contact, it performs a search in MailerLite to check if a subscriber with that email address already exists.

3. Handle Duplicates: If the subscriber is found in MailerLite, the workflow stops processing that specific contact, preventing any duplicates from being created.

4. Create New Subscribers: If the contact is not found, the workflow proceeds to create a new subscriber in MailerLite, using all the details from the Google Sheet (like name, company, and country) and assigns them to the specified group.

Setup Instructions

1. Google Sheets Setup:

  • Connect your Google Sheets account to n8n.
  • Create a sheet with the required columns: Email, first_name, last_name, Company, Country, and group_id.
  • In the Get row(s) in sheet node, select your credentials and specify the Document ID and Sheet Name.

2. MailerLite Setup:

  • Connect your MailerLite account to n8n using your API key.
  • In both the Get a subscriber and Create subscriber... nodes, select your MailerLite credentials.
  • Make sure the group_id values in your Google Sheet correspond to valid Group IDs in your MailerLite account.

3. Activate Workflow:

  • Save the workflow and click "Execute workflow" to run the sync whenever you need to update your subscriber list.

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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 - Get row(s) in sheet

Type / Role
n8n-nodes-base.googleSheets - googleSheets
Config choices
Version 4.6

Block 2 - Get a subscriber

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

Block 3 - Create subscriber and assign to group

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

Block 4 - Start Workflow

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

Block 5 - Sticky Note

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

Block 6 - Sticky Note1

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

Block 7 - Sticky Note2

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

Block 8 - End workflow

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

Block 9 - Sticky Note3

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

Block 10 - Sticky Note4

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

Block 11 - Sticky Note5

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

3. Summary Table

Workflow Sync new subscribers from Google Sheets to MailerLite without duplicates
Complexity intermediate
Nodes 11
Categories Social Media, Multimodal AI
Author Intuz
Published 21 Aug 2025

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/7681/7681.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

    Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.

  4. 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. 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.

Frequently asked questions

What does Sync new subscribers from Google Sheets to MailerLite without duplicates do?

This n8n template from Intuz provides a complete solution to automate the syncing of new subscribers from Google Sheets to MailerLite. It intelligently identifies and adds...

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 Social Media, Multimodal AI use case.