Squarespace Commerce and Twilio connect through the Squarespace Commerce Webhooks API and Twilio Messages API to send SMS order confirmations, fulfillment notifications, and customer follow-ups automatically from your Squarespace store. This integration requires either a Zapier automation for no-code implementation or a custom middleware server for full control, since Squarespace does not support native plugin installation the way WordPress does. The Squarespace Commerce Webhooks feature, available on Business and Commerce plans, delivers order events to your chosen endpoint in real time, making it possible to trigger Twilio SMS within seconds of order placement or fulfillment.
What You Need Before You Start
Confirm your Squarespace site is on a Business or Commerce plan, as the Commerce Webhooks API is not available on Personal plans and the order notification automation features require at minimum the Business tier. Access the Squarespace Developer API Keys settings by navigating to Settings, then Advanced, then Developer API Keys in your Squarespace admin, creating a new API key with the Orders Read permission scope, and noting the key for use in your middleware when fetching full order details. From Twilio, collect your Account SID, Auth Token, and an SMS-capable phone number, and register the number under an A2P 10DLC campaign in the Twilio Console for US-bound messaging before going live with customer notifications. If using the Zapier path, ensure your Zapier account is on the Starter plan or higher to access the Twilio action connector, and have your Twilio Zapier connection authorized before building the Zap.
Step-by-Step Integration Guide
For a custom webhook integration, register a Squarespace Commerce webhook by navigating to Settings, then Advanced, then Webhooks in your Squarespace admin, clicking Add Webhook, selecting the Order Fulfilled event, and entering your middleware endpoint URL. In your middleware, receive the Squarespace webhook POST, extract the orderId from the payload, and fetch full order details including the customer phone by calling GET https://api.squarespace.com/1.0/commerce/orders/{orderId} with the Authorization header set to Bearer {apiKey} and the User-Agent header set to an identifier for your integration. Extract the billingAddress.phone from the order response, normalize it to E.164 format, and dispatch the Twilio SMS by calling POST https://api.twilio.com/2010-04-01/Accounts/{AccountSid}/Messages.json with Basic authentication, To set to the normalized phone, From set to your Twilio number, and Body set to a message including the order number and a fulfillment confirmation. For the no-code Zapier path, create a Zap with the Squarespace trigger set to New Order and the action set to Twilio Send SMS, mapping the billing phone field from the Squarespace order to the Twilio To field and composing the Body using the order number and customer name dynamic fields from the Squarespace trigger output.
Common Issues and How to Fix Them
Squarespace webhooks deliver a minimal payload containing only the order ID and event type, and your middleware must make a secondary Squarespace API call to retrieve the customer phone, which adds latency and a failure point if the Squarespace API is unavailable at the time the webhook fires. Cache the secondary API response in your middleware for a short TTL to handle cases where duplicate webhook retries arrive while the original API call is still in-flight. Squarespace stores customer phones in a free-form billingAddress.phone field without enforcing any format, and international customers may enter their number in local format without a country code, making E.164 normalization unreliable without a country code hint. Use the billingAddress.countryCode field from the Squarespace order response to pass as the default region into a phone normalization library, falling back to US if the country code is missing, to maximize the number of successfully normalized phone numbers. The Squarespace API returns 401 Unauthorized when the API key used in the Authorization header has been rotated or deleted from the Squarespace admin, which can happen if a site owner regenerates API keys during a security review. Store the current API key version in your middleware configuration and set up a monitoring alert that fires when the Squarespace API returns 401 so you can update the key before the webhook pipeline silently stops delivering SMS.
How to Get More from This Integration
Add a post-purchase SMS follow-up by hooking into the Order Fulfilled Squarespace webhook, storing the order ID and fulfillment timestamp in a database, and running a scheduled job 7 days later that sends a Twilio SMS with a review request link and a discount code for the customer's next purchase, using Squarespace's built-in discount code system to generate the code via the Squarespace Commerce API. Extend the integration to Squarespace Forms by subscribing to form submission webhooks available under Settings, then Developer, then Webhooks, extracting the phone number from the form submission fields, and dispatching a Twilio SMS confirmation or follow-up to the submitter within seconds of form completion. Build an SMS opt-in consent layer by adding a checkbox field to your Squarespace order form using Squarespace's native form builder, capturing the consent value in the form submission webhook payload, and only dispatching Twilio SMS to customers who explicitly checked the consent field to maintain TCPA compliance. Use Zapier multi-step Zaps to add branching logic to the Squarespace-Twilio connection, using Zapier Paths to send different SMS content for different product categories by checking the lineItems product category field from the Squarespace order against known category names and routing each to a different Twilio Send SMS action step with category-appropriate message content.
Conclusion
Squarespace Commerce and Twilio together add automated SMS order notifications to your store without requiring you to migrate off the platform you already use. Contact Telphi Consulting to build a custom Squarespace Twilio integration or configure Zapier automation for your specific notification workflows.
Ready to Transform Your Business Communications?
Get a free consultation with our VoIP experts and discover how we can help you save costs, improve efficiency, and scale your business.
Comments (0)
Join the discussion and share your thoughts (AI-moderated for quality)
Be the first to comment
No comments yet. Share your thoughts below.