This article provides a complete, practical walkthrough of the Hubspot Mailchimp Create Scheduled 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:  
   Automate Mailchimp to HubSpot Contact Sync with n8n: Step-by-Step Workflow Breakdown
   
   Meta Description:  
   Learn how to automate daily synchronization of Mailchimp subscriber updates with HubSpot contacts using a custom n8n workflow. Ensure your CRM is always up-to-date with minimal manual effort.
   
   Keywords:  
   n8n workflow, Mailchimp HubSpot integration, Mailchimp sync automation, HubSpot contacts, update contacts automatically, n8n automation, no-code workflow, contact synchronization, API integration automation, CRM automation
   
   Third-Party APIs Used:
   
   1. Mailchimp API — for retrieving changed subscriber data.
   2. HubSpot API — for creating or updating contact information.
   
   Article:
   
   In today’s digital marketing environment, seamless data synchronization between platforms is critical to ensure up-to-date communications and accurate reporting. A common challenge is syncing contacts between Mailchimp—your email marketing platform—and HubSpot, your CRM. With n8n, a powerful, open-source workflow automation tool, you can build a system to do just that—automatically and every day.
   
   In this article, we’ll walk through a custom n8n workflow that performs a daily sync of new or updated Mailchimp subscribers into HubSpot as contacts. This allows your sales and marketing teams to rely on current data without having to think about it.
   
   📅 Daily Sync Trigger
   The workflow starts with a Cron node named “Every day at 07:00,” scheduled to run every morning at 7 a.m. This ensures that any updates made to Mailchimp lists from the previous day are captured early and consistently.
   
   🕒 Capturing the Last Execution Time
   To only fetch new or changed data, the workflow first determines when it last ran. This is done via the “Get last execution timestamp” node. Leveraging n8n’s static workflow data storage, the script checks if a previous timestamp exists. If not, it initializes one using the current date and time. This value is stored for use in filtering the Mailchimp request and updating later.
   
   📥 Retrieving Updated Members from Mailchimp
   Next, the workflow proceeds to the “Get changed members” node. This uses the Mailchimp API to fetch updated members from a specific list, using the last execution timestamp to filter only those who’ve changed. This is made possible with the since_last_changed property supported by Mailchimp, ensuring only incremental data is processed. This makes the system efficient and scalable even with large lists.
   
   👥 Syncing with HubSpot Contacts
   The output from Mailchimp is passed into the “Create/Update contact” node, which connects to HubSpot’s API. Here, the workflow checks if the user already exists in HubSpot based on their email. If they do, it updates the contact with the latest first and last name fields. If not, it creates a new contact. This step uses HubSpot's App Token authentication for secure API access.
   
   📝 Updating the Last Execution Time
   Finally, the "Set new last execution timestamp" node writes the current time back into the workflow’s static data. This timestamp will be used in the next day’s execution to fetch only new or changed contacts moving forward.
   
   Why This Workflow Is Powerful
   
   This simple but robust automation ensures your contact data between Mailchimp and HubSpot is always aligned—without any manual exports, complicated scripting, or third-party syncing services. By combining the power of APIs and the flexibility of n8n’s low-code design, this workflow becomes a vital part of your system architecture.
   
   Moreover, by tracking the last execution timestamp internally, this setup avoids redundant data processing and reduces unnecessary API calls—keeping performance high and costs low.
   
   Final Thoughts
   
   Integrating Mailchimp and HubSpot doesn’t have to involve manual CSV uploads or pricey middleware. This n8n automation gives marketers and developers a powerful, customizable, and efficient way to maintain data integrity between two widely used platforms.
   
   Whether you're scaling your business or refining your digital workflows, n8n offers a modular approach to build from this base and expand functionality as your needs grow.
   
   Ready to automate? With just a few nodes and powerful APIs, your two most important marketing systems can now talk to each other—daily, automatically.
   
   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.