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Fix Webflow → HubSpot Sync Issues (Not Working, Errors, Duplicates)

🔧 2 Common Issues

Diagnose and resolve common sync problems. We've documented the 2 most common issues, their root causes, and exactly how to fix them. See step-by-step fixes for duplicates, missing fields, rate limit errors, and connection issues.

high High Frequency

Multi-select checkboxes sync as 'true' or comma-list, breaking HubSpot picklist.

Also searched as: "Webflow HubSpot multi-select checkboxes sync as 'true' or comma-list, breaking hubspot picklist."

#1 Delimiter Mismatch 100% likely

📋 How to Diagnose

  1. 1. Webflow sends: 'A, B, C'
  2. 2. HubSpot expects: 'A;B;C'

✓ Solution

Use Make to transform the delimiter before pushing to HubSpot.

⏱️ Est. time: 20 min

Use Make → ->
View Setup Guide
medium High Frequency

Form submits success, but contact property is empty in HubSpot.

Also searched as: "Webflow HubSpot form submits success, but contact property is empty in hubspot."

#1 Webflow Field Name ≠ HubSpot Internal Name 100% likely

📋 How to Diagnose

  1. 1. Webflow Field Name: 'Work Email'
  2. 2. HubSpot Property: 'email'
  3. 3. Sync relies on exact name match or strict manual mapping.

✓ Solution

Rename Webflow field ID to match HubSpot property internal name.

⏱️ Est. time: 5 min

View Setup Guide

Ready to automate? We have a template for you.

Copy this Webflow → HubSpot blueprint, open n8n, paste it into the canvas, and your workflow is ready to configure.

n8n
webflow-hubspot-blueprint.json 
{
  "name": "Webflow → HubSpot Sync",
  "nodes": [
    {
      "id": "trigger",
      "name": "Webhook — Webflow Form",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        240,
        300
      ],
      "parameters": {
        "path": "{{WEBFLOW_WEBHOOK_PATH}}",
        "httpMethod": "POST"
      },
      "credentials": {}
    },
    {
      "id": "upsert_contact",
      "name": "HubSpot — Upsert Lead",
      "type": "n8n-nodes-base.hubspot",
      "typeVersion": 1,
      "position": [
        460,
        300
      ],
      "parameters": {
        "resource": "contact",
        "operation": "upsert",
        "additionalFields": {
          "email": "={{$json.body.data.email}}",
          "firstname": "={{$json.body.data.name}}",
          "hs_lead_status": "NEW"
        }
      },
      "credentials": {}
    }
  ],
  "connections": {
    "Webhook — Webflow Form": {
      "main": [
        [
          {
            "node": "HubSpot — Upsert Lead",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "tags": [
    "integratestack",
    "blueprint",
    "webflow",
    "hubspot"
  ]
}

You'll need to fill in these values:

{{WEBFLOW_WEBHOOK_PATH}}

n8n will prompt you to connect your accounts when you import this blueprint.

Download .json
Open n8n ->

Step 1: Try the Official Integration

Direct connection

Start with the native integration if available. It's usually the most reliable, but may have limitations.

View Setup Guide

Free with your subscription

Step 2: Use Make for Custom Flows

No code automation

Create custom integration workflows with Make's visual designer. It works with almost any API.

Try Make Free ->

1000 ops/mo free. No credit card.

Step 3: Self-Hosted with n8n

Full data control

Need complete data privacy? n8n is open-source and self-hostable. Build custom integrations with full control over your data.

Try n8n Free ->

Open source. Self-host or cloud. Unlimited ops.

Step 4: Add Human Review

Approval automation

Relay adds human-in-the-loop approvals, Slack/Teams alerts, and conditional logic to your automation.

Try Relay Free ->

1000 actions/mo free. No credit card.