Customer.io
Customer.io connects to Webflow through two methods: direct JavaScript form tracking and custom API integration. Choose your method based on technical requirements and use case complexity.
How to integrate Customer.io with Webflow
Customer.io lets you capture form submissions from Webflow sites and automatically add contacts to email campaigns. This integration works best for newsletter signups and basic email automation without requiring complex backend development.
You can connect Webflow forms to Customer.io using JavaScript form tracking or build custom integrations with the Customer.io API for more complex use cases.
Add Customer.io form tracking to Webflow
Connect Webflow forms directly to Customer.io by adding a JavaScript tracking snippet to your site. This method captures form submissions in real time and creates or updates customer profiles in Customer.io automatically.
The Customer.io Webflow forms integration requires a paid Webflow plan. It uses a specialized forms tracking script different from Customer.io's standard site tracking code. You'll add the JavaScript snippet to your custom code section, then map form fields to Customer.io person attributes.
This integration supports the following actions:
- Capture email signups from newsletter forms and create Customer.io contacts automatically
- Map custom form fields to Customer.io person attributes for detailed customer profiles
- Start email sequences when visitors submit forms on your Webflow site
- Track submission data including form field values and submission timestamps
You need access to Webflow's custom code features, which requires a paid site plan. The integration uses a forms-specific JavaScript snippet that differs from Customer.io's standard tracking implementation. Make sure you're implementing the correct code from the Customer.io form field mapping guide.
Build with Webflow and Customer.io APIs
Developers can build custom integrations using Customer.io's REST API alongside Webflow's APIs. This method requires backend development expertise and secure handling of API keys through serverless functions like Netlify Functions, AWS Lambda, or Cloudflare Workers.
This method supports the following actions:
- Send specific user actions from Webflow pages to Customer.io as custom events
- Build backend services that handle authentication, error handling, and rate limiting
- Send custom attributes and behavioral data beyond form fields
Building API integrations requires understanding Customer.io's 60 requests per minute rate limit, implementing secure authentication without exposing API keys in client-side code, and managing backend logic externally since Webflow doesn't provide native server-side code capabilities. The Customer.io API documentation provides comprehensive endpoint references and authentication methods for building custom integrations.
What you can build
Integrating Customer.io with Webflow lets you capture form submissions and automatically add contacts to Customer.io for email messaging.
- Newsletter signup page: Add a Webflow landing page with an email capture form that creates Customer.io contacts and triggers a 5-email welcome series when visitors submit their email address
- Multi-step onboarding flow: Build a Webflow site with separate forms for trial signup, product preferences, and team setup that trigger different Customer.io campaigns at each step
- SaaS pricing calculator: Create a Webflow page with a pricing calculator form that captures company size and feature interests, maps them to Customer.io attributes, and segments contacts for targeted product messaging
Frequently asked questions
You need a paid Webflow site plan to use Customer.io's direct form integration. The integration requires access to Webflow's custom code features, which aren't available on free plans. The Customer.io Webflow integration guide specifically notes this requirement for implementing the JavaScript tracking snippet.
Field mapping happens during the initial integration setup. You configure which Webflow form fields correspond to Customer.io person attributes. The Customer.io form field mapping guide explains the mapping process during configuration.
Common mappings include email addresses, names, and custom fields specific to your business. Make sure your Webflow form field names align with the Customer.io attributes you want to populate. Mismatched field names can prevent data from syncing correctly.
No, Customer.io provides a specialized forms JavaScript snippet that differs from the standard site tracking code. The Customer.io Webflow integration guide clarifies this distinction and provides the correct code for form tracking.
Using the wrong tracking implementation is a common setup error. It prevents form submissions from reaching Customer.io. Always reference the forms-specific documentation rather than the general JavaScript tracking guide.
Add the Customer.io forms tracking snippet to your Webflow site's custom code section. According to the Customer.io integration documentation, you'll place this code in your site settings where Webflow allows custom JavaScript.
Make sure you're implementing the forms-specific snippet rather than Customer.io's standard tracking code. The two serve different purposes and aren't interchangeable for form integration.
Customer.io captures the form field values your visitors submit. This includes email addresses, names, and any custom fields you've mapped during integration setup. The Customer.io form field mapping guide details which data points sync to Customer.io person profiles.
Description
Customer.io is a customer engagement platform for automated messaging. The platform connects to Webflow through form-based data capture to sync visitor information from forms into Customer.io contact profiles.
This integration page is provided for informational and convenience purposes only.
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