The 5 Best Klaviyo Integrations for Marketing Automation in 2026

Last updated July 2026

Klaviyo is a marketing automation platform that turns customer data into personalised email and SMS campaigns, but it only works as well as the data feeding it. Paperform is one of the simplest ways to solve that problem. Every lead, order, or booking form you build can feed structured, ready-to-use data straight into Klaviyo lists and flows. Integrating Klaviyo means connecting the tools that generate that data, such as forms, ecommerce platforms, shipping software, ad accounts, and support desks, so information moves automatically instead of getting copied by hand between dashboards.

Here's a quick look at five of the best Klaviyo integrations for small businesses, followed by a closer look at each one.

TL;DR: Best Klaviyo integrations at a glance

1. Paperform: the data-capture layer feeding your Klaviyo lists

Klaviyo can only market to people it has data on, and that data has to come from somewhere. Paperform is the form and landing page builder that sits in front of Klaviyo, turning lead forms, payment forms, quizzes, and booking forms into structured contact and order data. With Paperform's direct integration with Klaviyo, every form submission can automatically add an email address or phone number to a specific Klaviyo list, no exported spreadsheet required.

Say you run a newsletter signup form, a product quiz, and a booking form for consultations. Each one collects different information, but all three can feed the same Klaviyo account. Someone completing your quiz lands in a segment based on their answers thanks to Paperform's conditional logic, while someone booking a consultation triggers a different flow entirely. The result is Klaviyo campaigns built on real customer answers, not one generic list.

Paperform connects natively with Klaviyo and with 2,000+ other tools through native connections, Zapier, and Make, so the same form can feed your CRM, spreadsheet, or project management tool at the same time it updates Klaviyo.

Connecting Paperform to Klaviyo takes a few minutes:

1. In your Paperform form editor, go to After Submission > Integrations & Webhooks and select Klaviyo.
2. Log into your Klaviyo account and authorise the connection when prompted.
3. Choose which Klaviyo list the form should feed, or map fields to an existing profile property.
4. Send a test submission to confirm the contact lands in Klaviyo correctly.
5. Publish the form. From here, every submission adds or updates a Klaviyo profile automatically.

2. Shopify (and other ecommerce platforms): connect purchase history to your campaigns

If you sell online, connecting Klaviyo to your ecommerce platform is close to essential. Connecting Shopify to Klaviyo pulls in customer profiles and order data automatically, covering what people bought, when they bought it, and how much they spent.

That data lets Klaviyo build predictions about what a customer is likely to do next, so your flows can recommend products or send win-back emails based on real purchase behaviour instead of guesswork. A first-time buyer might land in a welcome flow, while someone who abandoned a cart triggers a reminder a few hours later, all without a marketer manually pulling a list. Shopify isn't the only option either. Klaviyo also connects directly with Adobe Commerce, BigCommerce, and WooCommerce.

This integration solves a different problem than Paperform does. Paperform captures the initial lead or booking before a purchase exists, while the ecommerce integration takes over once someone actually buys. Many small businesses run both: a Paperform quiz or lead form to bring someone into Klaviyo, followed by Shopify data once they convert into a paying customer.

3. ShipStation (and other shipping tools): keep customers updated after they buy

Once an order ships, customers want to know where it is. Klaviyo's ShipStation integration syncs order and shipping status every 30 minutes, so you can trigger shipping confirmation and delivery emails automatically instead of leaving customers to guess.

If you use different shipping software, Klaviyo covers the major players here too, including AfterShip, ShipBob, and Wonderment.

4. Facebook Ads (and Google Ads): turn your Klaviyo segments into ad audiences

Connecting Facebook Ads to Klaviyo lets you sync Klaviyo lists and segments straight into Facebook as Custom Audiences, so you can retarget existing customers or build lookalike audiences from your best segments. It also works in reverse. People who sign up through a Facebook lead ad can be added straight into a Klaviyo list.

If Google Ads is more your platform, Klaviyo connects directly with Google Ads too, using the same segment-to-audience logic.

5. Zendesk (and Help Scout): market around a customer's recent support experience

Customer service and marketing usually live in separate tools, but they shouldn't ignore each other. Klaviyo's Zendesk integration syncs support ticket data so you can send a different message to someone with an open ticket than someone whose issue is already resolved.

It runs both ways too. If someone replies to a Klaviyo SMS campaign, it can automatically create a ticket in Zendesk so your support team can pick up the conversation without digging through marketing tools. If you run Zendesk, our list of the best Zendesk integrations is worth a look for the support side of your stack, and Klaviyo connects with Help Scout if that's your helpdesk instead.

Common mistakes when setting up Klaviyo integrations

A few issues show up repeatedly once businesses start connecting multiple tools to Klaviyo:

• Sending everyone to one generic list. Without conditional logic or clear source tagging, a form, a quiz, and a checkout can all dump contacts into the same undifferentiated list, which defeats the purpose of segmentation. Tag or route contacts by source at the point of collection instead.
• Not testing the connection before going live. A missing field mapping or an expired authorisation can silently stop data from syncing. Send a real test submission through every integration before relying on it.
• Letting duplicate integrations fight each other. Connecting the same data source to Klaviyo twice (say, through both a native integration and a separate Zapier zap) can create duplicate contacts or conflicting updates. Pick one path per data source.
• Ignoring what happens after the sync. An integration only matters if a flow actually uses the data it sends. Check that new contacts and updated properties are triggering the automations you expect, not just landing in Klaviyo and sitting there.

FAQ

What is a Klaviyo integration?

A Klaviyo integration connects Klaviyo to another tool, like a form builder, ecommerce platform, or ad account, so customer data moves between them automatically. Integrations can push data into Klaviyo (like new contacts and orders) or pull Klaviyo data out into other tools (like syncing segments to Facebook ad audiences).

How do I get leads or orders into Klaviyo automatically?

The most direct way is connecting the tool that collects the data, such as a form, checkout page, or ecommerce platform, straight to Klaviyo. Paperform's direct Klaviyo integration adds a new contact's email or phone number to a Klaviyo list the moment they submit a form, with no manual export or import step.

Is Klaviyo integration setup difficult?

No. Most native Klaviyo integrations, including Paperform, Shopify, and Zendesk, are built to connect in a few clicks from inside each platform's integrations settings. You don't need developer support or custom code for any of the integrations covered in this guide.

Can I connect Klaviyo to a tool that doesn't have a native integration?

Yes. Klaviyo supports Zapier and webhooks for tools outside its native integration list, so you can still pass data in and out of Klaviyo even if a specific app isn't directly supported. This covers most of the smaller or niche tools a growing business might use alongside its core stack.

Does Klaviyo work for small businesses, or is it built for larger teams?

Klaviyo works well for businesses of all sizes, and its integration directory is built with small and mid-sized ecommerce brands in mind. What matters most is having clean, structured customer data feeding in, and that's exactly what tools like Paperform are built to provide.

What's the difference between Paperform's integration and using Zapier to connect to Klaviyo?

Paperform's native Klaviyo integration is a direct, built-in connection, so data moves as soon as a form is submitted with no extra tool in between. A Zapier connection works well too and can add more complex logic, but it depends on Zapier being active and typically runs on a short delay rather than instantly.

Should I connect every tool in my stack to Klaviyo, or just a few?

Start with whatever generates your leads and orders, since that's the data your flows depend on most. Ecommerce, shipping, ad, and support integrations add real value, but they're worth less without clean lead and order data feeding the account in the first place.

Can I segment Klaviyo lists based on what someone submits in a form?

Yes. Paperform's conditional logic can route different form answers to different Klaviyo lists or update specific profile properties, so someone who selects "enterprise" on a quiz can land in a different segment than someone who selects "small business," without any manual sorting afterward.

Give Klaviyo better data to work with

Klaviyo is only as effective as the information flowing into it. Get the ecommerce, shipping, ad, and support integrations right and you'll have a fuller picture of every customer, but none of that matters if your lead and order data isn't structured in the first place.

Build a free lead or order form in Paperform and connect it to Klaviyo in a couple of clicks. Start your free account today.