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CRM ⇄ Business productivity

6sense to Klaviyo integration — real-time data sync

Keep 6sense 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

Case study
Migrated from Mulesoft
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Migrated from Celigo
Migrated from Heroku Connect
Migrated from Matillion
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Migrated from Fivetran
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Migrated from Celigo
Why teams connect 6sense and Klaviyo

Flow 6sense data into Klaviyo in real time — no exports, no schedulers, no custom scripts.

6sense is a read-only source: Stacksync reads its data in real time and delivers it into Klaviyo, so Klaviyo always reflects the current state of 6sense — without exports, scripts, or schedulers.

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.

Common use cases

  • Keep suppression and consent status consistent between Klaviyo and other email or SMS tools
  • Sync catalog items from an ERP or PIM so product recommendations and back-in-stock flows use current data
  • Feed in-market account lists to sales engagement tools to start sequences automatically.
  • Sync 6sense buying stage and intent scores onto CRM accounts so sellers prioritize in-market targets.

Where Klaviyo runs outreach

Prospects, sends, and replies sync into 6sense, keeping lead status current without manual imports.

Where Klaviyo supplies contact or company data

Enriched fields land directly on records in 6sense, and refreshes keep them from going stale.

Where Klaviyo processes payments

Charges, refunds, and subscription changes appear on the account in 6sense, so revenue context lives with the relationship.

What you can sync between 6sense 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.

6sense objects Klaviyo objects
People / Contacts Persona and contact data surfaced for accounts, used to build outreach lists. Events Timestamped behavioral records tied to metrics; external order and product events are pushed in to trigger flows.
Reach Scores Model scores reflecting the level and recency of outreach to an account or contact, used to prioritize follow-up. Metrics Event type definitions organize the activity stream used in segmentation and attribution.
Accounts Company records enriched with firmographics and intent data, matched to CRM accounts. Campaigns Email and SMS sends expose performance data for warehouse-based reporting.
Segments Dynamic account lists built from intent and fit criteria, read out to drive targeting. Flows Automation definitions and their engagement data sync outward for attribution.
Buying Stage Scores Model-predicted stage per account, synced onto CRM records for prioritization. Templates Message templates are accessible via API for content management workflows.
Intent Signals Keyword-level research activity used to flag in-market accounts. Catalog Items Product catalog records synced from an ERP or PIM power product blocks and back-in-stock triggers.
What ships with 6sense ⇄ Klaviyo

Connect 6sense and Klaviyo for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every 6sense–Klaviyo connection.

Real-time

Real-time sync

Changes in 6sense or Klaviyo instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever 6sense 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 6sense or Klaviyo record.

Observability

Monitoring

Track your 6sense ⇄ Klaviyo sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions between 6sense and Klaviyo.

How the 6sense and Klaviyo connectors work

6sense

Integration surface
REST API
Authentication
API key (token passed in request headers)
Change detection
Polling; scores and segment membership are typically refreshed on the platform's model update cadence
Capabilities
read
Rate limits
Subject to the platform's API rate limits, which vary by contracted API package

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 6sense 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 6sense 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
    6sense connected
    Klaviyo connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the 6sense 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 · 6sense ⇄ 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
    6sense Klaviyo
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

6sense 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 6sense and Klaviyo.

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