Real-time
Two-way sync
Changes in Klaviyo or QuickBooks instantly reflect in both systems. No stale data, no manual imports.
Business productivity ⇄ Accounting and finance
Klaviyo to QuickBooks integration — real-time, two-way sync
Keep Klaviyo and QuickBooks 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
Case study
Migrated from Celigo
Migrated from Heroku Connect
Migrated from Matillion
Case study
Migrated from Fivetran
Case study
Migrated from Celigo
Why teams connect Klaviyo and QuickBooks
Connect the financial records in QuickBooks with the work happening in Klaviyo, so both stay current without exports or copy-paste.
QuickBooks 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 Journal entries, Estimates, Purchase orders, Credit memos in QuickBooks and Templates, Catalog Items, Tags, Profiles in Klaviyo in sync, bi-directionally and in real time. Whatever records Klaviyo keeps and whatever events it produces, the overlap with QuickBooks 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
- Push bills and vendor data from procurement systems into QuickBooks for AP processing.
- Reconcile payment-processor payouts against QuickBooks transactions.
- Sync customer profiles between Klaviyo and the CRM or warehouse so segments can use fields beyond storefront data
- Push offline, ERP, or subscription order events into Klaviyo as metrics to trigger post-purchase and win-back flows
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.
Where Klaviyo handles customer conversations: billing context in view
Front-line teams see invoice and payment status from QuickBooks next to the customer they are helping, without logging into the finance system.
Where Klaviyo collects payments or triggers charges: events land in QuickBooks
Payment and charge activity flows into QuickBooks as it happens, so the books reflect reality without manual reconciliation.
What you can sync between Klaviyo and QuickBooks
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 | QuickBooks objects | |
|---|---|---|
| Metrics Event type definitions organize the activity stream used in segmentation and attribution. | Estimates Quotes that convert to invoices, synced with CRM quoting flows | |
| Campaigns Email and SMS sends expose performance data for warehouse-based reporting. | Purchase orders Procurement documents synced with inventory and ordering systems | |
| Flows Automation definitions and their engagement data sync outward for attribution. | Credit memos Adjustments to receivables, needed for accurate revenue syncs | |
| Templates Message templates are accessible via API for content management workflows. | Customers Billing entities kept consistent with CRM accounts and subscription tools | |
| Catalog Items Product catalog records synced from an ERP or PIM power product blocks and back-in-stock triggers. | Invoices Receivables created from closed deals or orders and read back for payment status | |
| Tags Organizational labels on campaigns, flows, and lists support reporting rollups. | Payments Received funds applied to invoices, synced for revenue reconciliation |
What ships with Klaviyo ⇄ QuickBooks
Connect Klaviyo and QuickBooks for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Klaviyo–QuickBooks connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Klaviyo or QuickBooks 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 QuickBooks record.
Observability
Monitoring
Track your Klaviyo ⇄ QuickBooks 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 QuickBooks.
How the Klaviyo and QuickBooks 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
QuickBooks
- Integration surface
- REST API (QuickBooks Online)
- Authentication
- OAuth 2.0
- Change detection
- webhooks for entity change events, plus a Change Data Capture query operation for pull-based deltas
- Capabilities
- read · write · CDC · webhooks
- Rate limits
- subject to per-realm API request limits
How it works
How to connect Klaviyo to QuickBooks — 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.
- 01
Connect your apps
Authenticate Klaviyo and QuickBooks with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Klaviyo
connected
QuickBooks
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Klaviyo and QuickBooks 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.
objects · Klaviyo ⇄ QuickBooksCustomers 12,480Sales Orders 8,213Invoices 5,902Items 1,344 - 03
Map fields
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Klaviyo QuickBooksCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Klaviyo and QuickBooks integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Klaviyo and QuickBooks: authenticate both systems, choose the objects to sync (such as Klaviyo's Metrics and Campaigns), map fields visually, and changes propagate both ways in milliseconds — no code required.
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QuickBooks: Webhooks fire on entity operations including create, update, delete, and merge. Klaviyo: Klaviyo's current APIs follow the JSON:API specification, so payloads use typed resource objects with relationships rather than flat JSON. Stacksync's field mapping accounts for these differences between Klaviyo and QuickBooks without custom code.
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Stacksync is SOC 2 Type II and ISO 27001 certified with HIPAA BAA support. Data is encrypted in transit, and a zero-persistent-storage architecture means Klaviyo and QuickBooks records are not retained after a sync operation.
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Stacksync pricing is usage-based and starts at $1,000/month, including the managed Klaviyo and QuickBooks connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Klaviyo–QuickBooks integration in-house.
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Yes — Stacksync ships production-grade connectors for both Klaviyo and QuickBooks. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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Change detection on Klaviyo: Polling on updated timestamps; outbound webhooks exist for event topics (availability depends on plan or app-partner status) and as flow webhook actions. On QuickBooks: Webhooks for entity change events, plus a Change Data Capture query operation for pull-based deltas. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
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.
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:
Related integrations
Every pair below is a real-time, two-way sync. Search all 386 integrations available for Klaviyo and QuickBooks.
Popular · 8 of 386
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Klaviyo ⇄ Workday -
Klaviyo ⇄ Anaplan -
Klaviyo ⇄ Chargebee -
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QuickBooks ⇄ Zendesk -
QuickBooks ⇄ Campfire -
QuickBooks ⇄ Front -
QuickBooks ⇄ Amazon Seller Central
No integrations match .
