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Business productivity ⇄ Accounting and finance

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

Keep Klaviyo and Stripe 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 Klaviyo and Stripe

Connect the financial records in Stripe with the work happening in Klaviyo, so both stay current without exports or copy-paste.

Stripe holds the financial truth: who the customers are, what they were billed, what they paid. Klaviyo is where part of the day-to-day work happens, and that work often involves the same customers and transactions. Without a live connection, the two drift apart, and people end up answering questions from stale copies.

Stacksync keeps Disputes, Payouts, Balance Transactions, Events in Stripe and Tags, Profiles, Lists, Segments in Klaviyo in sync, bi-directionally and in real time. Whatever records Klaviyo keeps and whatever events it produces, the overlap with Stripe is mapped field by field, and a change on either side shows up on the other within seconds.

There is no middleware to build, no API rate limits to babysit, and no nightly job that leaves the morning running on yesterday's data.

Common use cases

  • 01 Reconcile invoices, payouts, and balance transactions into a warehouse or ERP for month-end close
  • 02 Keep the product and price catalog aligned between Stripe and an internal database that other systems read
  • 03 Keep suppression and consent status consistent between Klaviyo and other email or SMS tools
  • 04 Sync catalog items from an ERP or PIM so product recommendations and back-in-stock flows use current data

Common sync patterns

Where Klaviyo handles customer conversations: billing context in view

Front-line teams see invoice and payment status from Stripe next to the customer they are helping, without logging into the finance system.

Where Klaviyo collects payments or triggers charges: events land in Stripe

Payment and charge activity flows into Stripe as it happens, so the books reflect reality without manual reconciliation.

Where Klaviyo tracks people or companies: one identity

A customer's details updated in either system update the other, so finance and the rest of the business stop maintaining two versions of the same customer.

What you can sync between Klaviyo and Stripe

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.

Klaviyo objects Stripe objects How this pairing syncs
Events Timestamped behavioral records tied to metrics; external order and product events are pushed in to trigger flows. Events The change log; each state change is an Event retrievable via the API. Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions.
Metrics Event type definitions organize the activity stream used in segmentation and attribution. Customers The billing identity most teams match against CRM accounts and contacts. Metrics is specific to Klaviyo and Customers to Stripe — each maps to any object or custom field on the other side.
Campaigns Email and SMS sends expose performance data for warehouse-based reporting. PaymentIntents The lifecycle record of a payment attempt, from creation to success or failure. Campaigns is specific to Klaviyo and PaymentIntents to Stripe — each maps to any object or custom field on the other side.
Flows Automation definitions and their engagement data sync outward for attribution. Charges Individual captured payments underlying intents, used in reconciliation. Flows is specific to Klaviyo and Charges to Stripe — each maps to any object or custom field on the other side.
Templates Message templates are accessible via API for content management workflows. Invoices Billing documents with line items, synced to ERPs and accounting systems. Templates is specific to Klaviyo and Invoices to Stripe — each maps to any object or custom field on the other side.
Catalog Items Product catalog records synced from an ERP or PIM power product blocks and back-in-stock triggers. Subscriptions Recurring billing state that drives provisioning and CRM lifecycle stages. Catalog Items is specific to Klaviyo and Subscriptions to Stripe — each maps to any object or custom field on the other side.

How changes propagate between Klaviyo and Stripe

Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.

Klaviyo Stripe Sub-second propagation

DetectionKlaviyo notifies Stacksync of record changes through webhook events. Polling on updated timestamps.

DeliveryEach detected change is written to Stripe through its API, with automatic retries and rate-limit backoff.

Stripe Klaviyo Sub-second propagation

DetectionStripe notifies Stacksync of record changes through webhook events. Webhooks backed by the Events API.

DeliveryEach detected change is written to Klaviyo through its API, with automatic retries and rate-limit backoff.

Rate-limit considerations

  • Klaviyo: Per-endpoint burst and steady rate limits apply.
  • Stripe: Subject to documented per-mode request rate limits; idempotency keys make retries safe.
What ships with Klaviyo ⇄ Stripe

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

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

Real-time

Two-way sync

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

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Klaviyo or Stripe 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 Klaviyo or Stripe record.

Observability

Monitoring

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

Trading partners

EDI

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

How the Klaviyo and Stripe connectors work

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

Stripe

Integration surface
REST API
Authentication
API keys (secret and restricted keys); OAuth 2.0 for Stripe Connect platforms
Change detection
Webhooks backed by the Events API; /v1/events supports replay and backfill
Capabilities
read · write · webhooks
Rate limits
Subject to documented per-mode request rate limits; idempotency keys make retries safe
How it works

How to connect Klaviyo to Stripe — 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 Klaviyo and Stripe 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
    Klaviyo connected
    Stripe connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

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

Klaviyo and Stripe integration FAQ

SECURITY

Security teams trust 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
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 503 integrations available for Klaviyo and Stripe.

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