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CRM ⇄ Business productivity

Intercom to Klaviyo integration — real-time, two-way sync

Keep Intercom and Klaviyo in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.

  • SOC 2 and 6 other compliance frameworks
  • POC with real engineers in minutes

Adopted by fast-scaling companies moving mission-critical data in real time

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Why teams connect Intercom and Klaviyo

Sync what happens in Klaviyo with the customer records in Intercom, in real time and in both directions.

The CRM is supposed to be the record of every customer relationship, but customer-relevant information also accumulates in the other tools a team runs. Whatever Klaviyo holds or produces that touches a customer, whether conversations, payments, replies, enriched data, or notes, the CRM only benefits if it arrives without someone copying it over.

Stacksync connects Catalog Items, Tags, Profiles, Lists in Klaviyo to Conversations, Tickets, Data Events, Custom Data Attributes in Intercom with bi-directional, real-time sync. Activity and record changes in Klaviyo update the matching contact or account in Intercom, and CRM data flows the other way wherever Klaviyo can store and use it.

Common use cases

  • Sync catalog items from an ERP or PIM so product recommendations and back-in-stock flows use current data
  • Sync customer profiles between Klaviyo and the CRM or warehouse so segments can use fields beyond storefront data
  • Route qualified leads from Intercom conversations into the CRM as leads or opportunities in near real time
  • Sync contacts and companies bi-directionally with the CRM so support sees deal context and sales sees conversation history

Where Klaviyo supplies contact or company data

Enriched fields land directly on records in Intercom, and refreshes keep them from going stale.

Where Klaviyo processes payments

Charges, refunds, and subscription changes appear on the account in Intercom, so revenue context lives with the relationship.

Where Klaviyo can store CRM context: fields kept current

Owner, lifecycle stage, or account details from Intercom sync into Klaviyo, so people working there have the context without switching tools.

What you can sync between Intercom and Klaviyo

Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.

Intercom objects Klaviyo objects
Contacts A single contact model covers both users and leads, distinguished by a role attribute. Campaigns Email and SMS sends expose performance data for warehouse-based reporting.
Companies Company records group contacts and carry plan and account attributes used in segmentation. Flows Automation definitions and their engagement data sync outward for attribution.
Conversations Support and sales threads sync outward for analytics and CRM context. Templates Message templates are accessible via API for content management workflows.
Tickets Structured ticket records track issues alongside conversational threads. Catalog Items Product catalog records synced from an ERP or PIM power product blocks and back-in-stock triggers.
Data Events Behavioral events pushed in from product databases trigger messages and flows. Tags Organizational labels on campaigns, flows, and lists support reporting rollups.
Custom Data Attributes Typed custom fields on contacts and companies hold synced billing and usage data. Profiles Person records with arbitrary custom properties are the target for CRM and warehouse-sourced attributes.
What ships with Intercom ⇄ Klaviyo

Connect Intercom and Klaviyo for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Intercom–Klaviyo connection.

Real-time

Two-way sync

Changes in Intercom or Klaviyo instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Intercom or Klaviyo data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.

At scale

Event queues

Handle millions of events per minute without losing a single Intercom or Klaviyo record.

Observability

Monitoring

Track your Intercom ⇄ Klaviyo sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions between Intercom and Klaviyo.

How the Intercom and Klaviyo connectors work

Intercom

Integration surface
REST API
Authentication
OAuth 2.0 for public apps or a workspace access token
Change detection
Webhook topic subscriptions for contact, company, and conversation events, plus polling for backfill
Capabilities
read · write · webhooks
Rate limits
Subject to per-app rate limits on the Intercom API

Klaviyo

Integration surface
REST API compliant with the JSON:API specification
Authentication
OAuth 2.0 for apps or private API keys
Change detection
Polling on updated timestamps; outbound webhooks exist for event topics (availability depends on plan or app-partner status) and as flow webhook actions
Capabilities
read · write · webhooks
Rate limits
Per-endpoint burst and steady rate limits apply
How it works

How to connect Intercom to Klaviyo — three steps, no code

Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.

  1. 01

    Connect your apps

    Authenticate Intercom and Klaviyo with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.

    • OAuth 2.0
    • SSH tunnel
    • VPC peering
    Intercom connected
    Klaviyo connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the Intercom and Klaviyo objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.

    • Standard objects
    • Custom objects
    • Auto-schema
    objects · Intercom ⇄ Klaviyo
    Customers 12,480
    Sales Orders 8,213
    Invoices 5,902
    Items 1,344
  3. 03

    Map fields

    Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.

    • Auto-map
    • Type casting
    • Transforms
    Intercom Klaviyo
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

Intercom and Klaviyo integration FAQ

SECURITY

Security teams love Stacksync

As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.

Learn more about security
SOC 2 type II
ISO 27001
HIPAA BAA
GDPR
CCPA
CSA STAR
DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS

SSO & SCIM

Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.

Alerts

Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.

Secure connection options

Securely connects to your systems with:

OAuth 2 SSH Tunnelling SSL certificates IP Whitelisting VPN gateway VPC peering and more

Related integrations

Every pair below is a real-time, two-way sync. Search all 386 integrations available for Intercom and Klaviyo.

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