Powerful 2-way HubSpot-Klaviyo integration
Real-time, 2-way sync between HubSpot and Klaviyo. Sync contacts, email engagement, and ecommerce events.
2-way sync between HubSpot contacts and Klaviyo lists
- Sync exactly what you need. Choose all contacts or specific HubSpot/Klaviyo lists. Map which contact and company fields stay in 1-way or 2-way sync.
-
No more messy data. We handle duplicates, archived contacts, and even email address changes automatically.
-
Turn engagement into leads. Create new HubSpot contacts when people subscribe or engage with Klaviyo emails.
Sync email engagement from Klaviyo to HubSpot, give salespeople more context
Record campaign and flow engagement (sends, opens, clicks, bounces, unsubscribes) on HubSpot timelines—down to which links were clicked. Historical sync available.
-
Surface buying signals. Build lists and workflows from real engagement, not guesses.
-
Build call lists. Automatically share hot, recently engaged leads with sales.
Sync ecommerce events to HubSpot and power better follow-ups
Send key Klaviyo ecommerce events—like Added to Cart, Viewed Product, Started Checkout, Placed Order—straight into HubSpot.
-
Instant context for reps. Give sales the “why now” behind every contact.
-
Smarter automation. Trigger timely workflows without any store integration.
Monitor progress, see what needs fixing
Get clear visibility into sync status and activity, pinpoint errors, and resolve issues quickly—so your teams can trust the data they see.
"We needed to sync customer data in HubSpot and Klaviyo. Other tools just sent data to each other but did not keep things in sync. These guys also provided excellent support and made enhancements without additional cost."
- Problem
- Syncing HubSpot and Klaviyo customer data.
- What they liked
- Highly responsive team. Two-way sync.
Frequently asked questions
Outfunnel vs Zapier: what’s the difference for HubSpot–Klaviyo syncing?
Outfunnel is purpose-built for the kind of integration that HubSpot–Klaviyo sync is. Unlike generic iPaaS tools such as Zapier or Make, it offers pre-defined sync workflows, bi-directional contact and engagement syncing, reliable monitoring, and fewer maintenance workflows—so marketers get accurate, always-on sync without stitching together custom zaps or scripts.
Especially with larger databases where data changes more frequently, there’s also a cost benefit to using Outfunnel.
Why should I use Outfunnel instead of a native integration?
Currently, there’s no native integration available between HubSpot and Klaviyo
How often is data synced between HubSpot and Klaviyo?
Data syncing frequency and speed varies across apps and the type of data.
Syncing contacts
-
Updates to Klaviyo Lists and field changes for contacts that are already in sync are updated in real-time.
-
Outfunnel checks for updates in HubSpot Lists once every two hours. For example, if you add or remove a contact from the target segment then it will take a maximum of 2 hours for the data to sync.
Syncing email and ecommerce engagement from Klaviyo
All campaign data and ecommerce events sync in real-time.
PS. You can always initiate a manual sync by clicking “Sync now” on the connection.
Which Klaviyo events can be synced to HubSpot?
-
Email events covered: Sends, delivered, opens, clicks (including details on which links were clicked), bounces, unsubscribes,
-
Ecommerce events covered: Viewed Product, Added to Cart, Started Checkout, Placed Order, Cancelled Order, Refunded, and several other Klaviyo events.
Can Outfunnel handle large volumes of data?
Yes, Outfunnel was built to sync large volumes of data!
Outfunnel was built to respect HubSpot/Klaviyo API limits. Data queues intelligently during spikes and there are automatic retries in place.
You can get an overview of sync status at any time. When a sync failed, you’ll see a clear error message (eg. duplicate contact, email missing) for each errored contact.
How much does Outfunnel cost?
Our plans start at just $29 per month, and there’s a 17% discount for signing up to an annual subscription. Our standard plan is perfect for syncing relatively small volumes of data or for syncing lead forms to a CRM.
Our Professional plan starts at $99 per month (excluding annual discount). It’s great for syncing larger volumes of data and for more demanding teams that want to track website visits of their contacts and score their leads.
All plans are available with a 14-day free trial. See our detailed pricing.
We make elaborate syncing and workflows simple
Get HubSpot and Klaviyo data syncing in 10 minutes. Really.