Webhook and Mailchimp integration

CRM Contact Sync with Mailchimp and Pipedrive This workflow keeps your contact records perfectly aligned between your CRM (e.g. HubSpot / Salesforce / Pipedrive) and Mailchimp. Whenever a contact is created or updated in one system, the automation propagates the change to the other platform, ensuring every email address, phone number and custom field stays in sync. Pre-conditions/Requirements Prerequisites n8n instance (self-hosted or cloud) Community nodes: Pipedrive, Mailchimp A dedicated service account in each platform with permission to read & write contacts Basic understanding of how webhooks work (for CRM → n8n triggers) Required Credentials Pipedrive API Token** – Used for creating, updating and searching contacts in Pipedrive Mailchimp API Key** – Grants access to lists/audiences and contact operations CRM Webhook Secret** (optional) – If your CRM supports signing webhook payloads Specific Setup Requirements | Environment Variable | Description | Example | |----------------------|--------------------------------------|---------------------------------| | PIPEDRIVE_API_KEY | Stored in n8n credential manager | 123abc456def | | MAILCHIMP_API_KEY | Stored in n8n credential manager | us-1:abcd1234efgh5678 | | MAILCHIMP_DC | Mailchimp Datacenter (sub-domain) | us-1 | | CRM_WEBHOOK_URL | Generated by the Webhook node | https://n8n.myserver/webhook/... | How it works This workflow keeps your contact records perfectly aligned between your CRM (e.g. HubSpot / Salesforce / Pipedrive) and Mailchimp. Whenever a contact is created or updated in one system, the automation propagates the change to the other platform, ensuring every email address, phone number and custom field stays in sync. Key Steps: Inbound Webhook**: Receives contact-change events from the CRM. Split in Batches**: Processes contacts in chunks to stay within API rate limits. Mailchimp Upsert**: Adds or updates each contact in the specified Mailchimp audience. Pipedrive Upsert**: Mirrors the same change in Pipedrive (or vice-versa). Merge & IF nodes**: Decide whether to create or update a contact by checking existence. Error Trigger**: Captures any API failures and posts them to the configured alert channel. Set up steps Setup Time: 15-25 minutes Create credentials • In n8n, add new credentials for Pipedrive and Mailchimp using your API keys. • Name them clearly (e.g. “Pipedrive Main”, “Mailchimp Main”). Import the workflow • Download or paste the JSON template into n8n. • Save the workflow. Configure the Webhook node • Set HTTP Method to POST. • Copy the generated URL and register it as a webhook in your CRM’s contact-update events. Map CRM fields • Open the first Set node and match CRM field names (firstName, lastName, email, etc.) to the standard keys used later in the flow. Select Mailchimp Audience • In the Mailchimp node, choose the audience/list that should receive the contacts. Define Pipedrive Person Fields • If you have custom fields, add them in the Pipedrive node’s Additional Fields section. Enable the workflow • Turn the workflow from “Inactive” to “Active”. • Send a test update from the CRM to verify that contacts appear in both Mailchimp and Pipedrive. Node Descriptions Core Workflow Nodes: Webhook** – Accepts contact-change payloads from the CRM. Set** – Normalises field names to a common schema. SplitInBatches** – Loops through contacts in controllable group sizes. HTTP Request** – Generic calls (e.g. HubSpot/Salesforce look-ups when required). Pipedrive** – Searches for existing persons; creates or updates accordingly. Mailchimp** – Performs contact upsert into an audience. If** – Branches logic on “contact exists?”. Merge** – Re-assembles branch data back into a single execution line. Code** – Small JS snippets for complex field transformations. Error Trigger** – Listens for any node failure and routes it to alerts. StickyNote** – Documentation hints inside the workflow. Data Flow: Webhook → Set (Normalise) → SplitInBatches SplitInBatches → Mailchimp (Get) → If (Exists?) → Mailchimp (Upsert) SplitInBatches → Pipedrive (Search) → If (Exists?) → Pipedrive (Upsert) Merge → End / Success Customization Examples Add a Tag to Mailchimp contacts // Place inside a Code node before the Mailchimp Upsert item.tags = ['Synced from CRM', 'High-Value']; return item; Apply a Deal Stage in Pipedrive // Pipedrive node → Additional Fields "deal": { "title": "New Lead from Mailchimp", "stage_id": 2 } Data Output Format The workflow outputs structured JSON data: { "id": 1472, "status": "updated", "email": "[email protected]", "source": "CRM", "synced": { "pipedrive": "success", "mailchimp": "success" }, "timestamp": "2024-04-27T10:15:00Z" } Troubleshooting Common Issues HTTP 401 Unauthorized – Verify that the API keys are still valid and have not been revoked. Webhook receives no data – Double-check that the CRM webhook URL matches exactly and that the event is enabled. Performance Tips Batch contacts in groups of 50-100 to respect Mailchimp & Pipedrive rate limits. Use Continue On Fail in non-critical nodes to prevent the entire run from stopping. Pro Tips: Map your CRM’s custom fields once in the Set node to avoid touching each downstream node. Use Merge+If pattern to keep “create vs update” logic tidy. Enable workflow execution logs only in development to reduce storage usage. *Community Template Disclaimer: This workflow is provided by the n8n community “as is”. n8n GmbH makes no warranties regarding its performance, security or compliance. Always review and test in a development environment before using it in production.*

Lead Qualification & Follow‑up (Gemini) Automate lead intake, AI qualification, and next‑step outreach. Qualified leads get a scheduled meeting, Zoom details, an email confirmation, CRM update, and Mailchimp enrollment. Not‑qualified leads receive a follow‑up sequence, CRM update, and a 30‑day reminder. What this workflow does AI qualifies leads as QUALIFIED or NOT QUALIFIED using Google Gemini. Supports two triggers: Webhook (wordpress-form) or n8n Form Trigger. QUALIFIED branch: AI phone call via VAPI Schedules Google Calendar event Creates Zoom meeting Sends confirmation email via Gmail Adds to Mailchimp audience Updates contact in HubSpot NOT QUALIFIED branch: AI phone call via VAPI Adds to Mailchimp audience Sends follow‑up email via Gmail Updates contact in HubSpot Creates 30‑day follow‑up calendar event Apps and credentials required Google Gemini (PaLM/Gemini API) Gmail HubSpot Zoom Google Calendar VAPI (for AI phone calls) Mailchimp Environment variables MAILCHIMP_LIST_ID_QUALIFIED=your_mailchimp_list_id_for_qualified MAILCHIMP_LIST_ID_FOLLOWUP=your_mailchimp_list_id_for_followup Triggers supported Webhook: path wordpress-form (POST) Form Trigger: built‑in n8n form Use only one in production. Keep the other disabled. Expected input (fields) name: string email: string message: string If using Webhook, send a JSON body with the fields above. Setup Connect credentials: Google Gemini (model: models/gemini-2.5-flash) Gmail HubSpot (OAuth) Zoom Google Calendar (select the target calendar) VAPI (HTTP header auth: Bearer token) Set env vars: MAILCHIMP_LIST_ID_QUALIFIED MAILCHIMP_LIST_ID_FOLLOWUP Choose your trigger: Webhook: enable and use the provided URL for wordpress-form Form Trigger: enable and publish the form Review timing: adjust Wait nodes for your timezone and SLA. Personalize messaging: edit Gmail subjects/bodies and Zoom topic. CRM and lists: confirm HubSpot properties and Mailchimp list IDs. How it works (at a glance) Intake → AI classifies (QUALIFIED / NOT QUALIFIED) QUALIFIED: VAPI call → Schedule Calendar → Create Zoom → Add to Mailchimp (qualified) → Gmail confirmation → HubSpot update NOT QUALIFIED: VAPI call → Add to Mailchimp (follow‑up) → Gmail follow‑up → HubSpot update → 30‑day calendar event Test the workflow (before going live) Submit a test via your chosen trigger with name, email, message. Confirm AI decision at the “Lead Decision” node. If QUALIFIED: VAPI call executed Calendar event created Zoom meeting created (join URL available) Mailchimp enrollment (qualified list) Gmail confirmation sent HubSpot contact created/updated If NOT QUALIFIED: VAPI call executed Mailchimp enrollment (follow‑up list) Gmail follow‑up sent HubSpot updated 30‑day calendar reminder created Open any failing HTTP nodes and review response codes/messages. Go‑live checklist All credentials connected (no warnings) MAILCHIMP_LIST_ID_QUALIFIED and MAILCHIMP_LIST_ID_FOLLOWUP set Timezone and delays validated Email copy approved Only one trigger enabled Final end‑to‑end test passed Toggle workflow Active Customization ideas Add a Slack or Microsoft Teams notification on QUALIFIED Enrich leads (Clearbit, ZoomInfo, etc.) before AI decision Swap Mailchimp for your ESP (Klaviyo, SendGrid Marketing) Add a second‑chance branch for ambiguous AI classifications Localize email copy by country or language Troubleshooting Webhook receives no data: ensure external form POSTs JSON to the n8n URL and network rules allow it. AI decision empty/garbled: verify Gemini credentials/model ID and input fields. Mailchimp errors: verify List IDs and that email is valid. Gmail send fails: check OAuth scopes and daily limits. Zoom/Calendar issues: re‑connect OAuth; verify calendar access. HubSpot errors: confirm OAuth scopes and property mappings. Security and scopes Gmail: send email Google Calendar: create events Zoom: create meetings HubSpot: read/write contacts Mailchimp: list membership VAPI: authenticated HTTP requests Gemini: model inference Use least‑privilege for each integration. Limits and notes Gmail and Mailchimp rate limits may apply during spikes. Zoom and Google Calendar API quotas apply for frequent scheduling. VAPI call timeouts are 30s by default; adjust as needed. Changelog 2025‑09‑15: Initial public template with dual triggers, Gemini qualification, VAPI calls, scheduling, Mailchimp, Gmail, and HubSpot updates.

This is an n8n template that Automate welcome emails with discount codes via Mailchimp and Gmail Who's it for Perfect for e-commerce businesses, SaaS companies, course creators, and service providers who want to automatically nurture new subscribers with personalized welcome emails and discount codes. If you're looking to boost conversions from your website signup forms and create a professional onboarding experience, this workflow is your solution. How it works This workflow creates a seamless subscriber onboarding process: Webhook receives signup data from your website form (name, email, timestamp, source) Mailchimp integration automatically adds the subscriber to your email list with their name Gmail sends personalized welcome email with a discount code and branded content Error handling ensures the welcome email sends even if Mailchimp fails The workflow is triggered instantly when someone submits your website signup form, creating a professional first impression that can significantly improve customer engagement and conversion rates. How to set up Requirements Mailchimp account** with an active audience/list Gmail account** with OAuth2 access Website or landing page with a signup form Basic HTML/CSS knowledge** for email customization (optional) Step-by-step setup Configure Mailchimp Integration Create or identify your Mailchimp audience Replace YOUR_MAILCHIMP_LIST_ID with your actual list ID Add your Mailchimp API credentials in n8n Set up any custom merge fields you need (FNAME is included by default) Set Up Gmail Credentials Add your Gmail OAuth2 credentials in n8n Ensure the sending email account has appropriate permissions Test email delivery to avoid spam folder issues Customize the Welcome Email Replace [Your Business Name] with your actual business name Update the discount code (WELCOME15) with your preferred offer Modify the shop URL (https://your-website.com/shop) to your store. Update social media links with your actual profiles Customize colors, fonts, and branding to match your business. Deploy Your Webhook Copy the webhook URL from the n8n workflow Add this URL to your website signup form as the POST endpoint Ensure your form sends JSON data with name and email fields Test the Complete Flow Submit a test signup through your website form Verify the contact appears in Mailchimp Check that the welcome email arrives with proper personalization How to customize the workflow Advanced Email Personalization Dynamic content blocks: Add conditional sections based on signup source or user preferences Custom merge fields: Capture additional data like company name, phone number, or interests in Mailchimp Segmented messaging: Create different email templates for different subscriber types Multi-language support: Detect user language from form data and send localized emails Webhook Integration Examples Google Forms Integration: Use Google Apps Script to POST form responses to your n8n webhook Map form fields to the expected JSON structure (name, email, source) Typeform Integration: Configure Typeform webhooks in Connect panel Set payload to include question responses in the required format Custom HTML Forms: // Example form submission code fetch('YOUR_N8N_WEBHOOK_URL', { method: 'POST', headers: {'Content-Type': 'application/json'}, body: JSON.stringify({ name: document.getElementById('name').value, email: document.getElementById('email').value, source: 'website' }) }); WordPress Contact Form 7: Use CF7 hooks to send form data to your webhook endpoint Install REST API plugins for seamless integration Workflow Logic Enhancements Data validation: Add If nodes to check email format and required fields before processing Duplicate prevention: Query Mailchimp first to avoid adding existing subscribers Source-based routing: Send different welcome emails based on signup source (blog, product page, etc.) Lead scoring: Assign scores based on signup source and send to appropriate lists Follow-up sequences: Add Wait nodes to create multi-step email campaigns Advanced Integrations CRM sync: Connect to Salesforce, HubSpot, or Pipedrive to create leads automatically Analytics tracking: Log conversions to Google Sheets or send events to Google Analytics Slack notifications: Alert your team about high-value signups or VIP customers SMS follow-up: Add Twilio integration for multi-channel welcome sequences Troubleshooting Common Issues and Solutions Emails going to spam folder: Configure SPF and DKIM records for your sending domain Use Gmail's "Send as" feature to authenticate your sending address Start with low volume and gradually increase to build sender reputation Include unsubscribe links and proper email headers Mailchimp API errors: Check your API key permissions and rate limits Verify the list ID is correct (found in Audience settings) Ensure required fields are properly mapped Review Mailchimp's compliance requirements for your region Webhook not triggering: Test the webhook URL directly using tools like Postman Check that your form sends POST requests with proper Content-Type headers Verify JSON payload structure matches expected format Review n8n execution logs for error details Personalization not working: Confirm form field names match the n8n node references Check that data is properly passed between workflow nodes Test with sample data to isolate mapping issues Use n8n's data inspection tools to debug payload structure Performance Optimization High-volume handling: Consider using Mailchimp's batch operations for multiple signups Implement queue systems for processing during traffic spikes Monitor workflow execution times and optimize slow nodes Set up error notifications to catch issues quickly Delivery improvements: Use dedicated email services like SendGrid or Mailgun for better deliverability Implement email warmup procedures for new sending domains A/B test subject lines and send times for better engagement Monitor bounce rates and remove invalid emails promptly.