Klaviyo

Connect Klaviyo with SMS and MMS to automate personalized campaigns, drive repeat purchases, and boost customer engagement.

Klaviyo text message integration by Sinch Engage

When you already have strong customer data in Klaviyo, adding mobile messaging helps you act on it faster. By connecting Klaviyo to Sinch Engage (formerly MessageMedia), you can sync contacts, trigger SMS from within Klaviyo flows, and turn customer behavior into more timely, personalized outreach across the journey. It’s a practical way to bring SMS into the campaigns and automations you’re already building, while keeping audience data aligned between platforms.

Key benefits of this integration:

  • Sync Klaviyo contacts into Sinch Engage automatically, so names, phone numbers, emails, and opt-out status stay aligned without manual uploads.
  • Send SMS directly within Klaviyo flows using webhooks, so text messaging can become part of your existing automation strategy.
  • Use customer behavior and segmentation in Klaviyo to trigger more timely, personalized SMS messages.
  • Pass opt-outs back to Klaviyo, helping keep consent status more consistent across both platforms.
  • Support stronger retention and repeat business with automated SMS campaigns built around segmented audiences.
  • Unlock richer e-commerce insights when Klaviyo is also connected with Shopify or BigCommerce.

Klaviyo text messaging use cases

How to use SMS and mobile messaging on Klaviyo with the Sinch Engage integration

Image for Drive repeat purchases

Drive repeat purchases

Use segmented audiences and automated SMS flows to bring customers back at the right moment. When they engage, keep the experience going in Klaviyo with more connected customer journeys.
Image for Put your data to work

Put your data to work

Use Klaviyo’s customer data to send more personalized messages. And by connecting Shopify or BigCommerce, you can tap into deeper ecommerce reporting to make your campaigns even smarter.
Image for Scale on your terms

Scale on your terms

From seasonal spikes to global audiences, you can send with more flexibility using scalable plans, rich messaging features, and broad international reach.

Why Sinch Engage

The best Klaviyo texting integration for growing teams

Easy setup

Get started in a few clicks. You can even try it free—no commitments, no credit card needed.

Excellent customer support

We’re always here to help—with 24/7 live chat and email support (you won’t get that elsewhere).

Unmatched deliverability

We have a global network of over 600 direct carrier connections so you can send reliably, anywhere.

Secure & Compliant

Tier 1 security features, carrier-approved messaging, and full GDPR & TCP compliance.