Real-time
Two-way sync
Changes in Klaviyo or Zuora instantly reflect in both systems. No stale data, no manual imports.
Business productivity ⇄ Accounting and finance
Klaviyo to Zuora integration — real-time, two-way sync
Keep Klaviyo and Zuora 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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Migrated from MuleSoft
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Migrated from Fivetran
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Migrated from Celigo
Why teams connect Klaviyo and Zuora
Connect the financial records in Zuora with the work happening in Klaviyo, so both stay current without exports or copy-paste.
Zuora 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 Rate Plan and Rate Plan Charge, Product and Product Rate Plan (Product Catalog), Invoice, Payment in Zuora and Profiles, Lists, Segments, Events in Klaviyo in sync, bi-directionally and in real time. Whatever records Klaviyo keeps and whatever events it produces, the overlap with Zuora 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 Master the Product Catalog (Products and Product Rate Plans) in a database or PIM and write pricing changes into Zuora.
- 02 Stream metered Usage records from a warehouse or metering pipeline into Zuora so consumption-based charges are rated on the correct Rate Plan.
- 03 Sync customer profiles between Klaviyo and the CRM or warehouse so segments can use fields beyond storefront data
- 04 Push offline, ERP, or subscription order events into Klaviyo as metrics to trigger post-purchase and win-back flows
Common sync patterns
Where Klaviyo handles customer conversations: billing context in view
Front-line teams see invoice and payment status from Zuora next to the customer they are helping, without logging into the finance system.
Where Klaviyo collects payments or triggers charges: events land in Zuora
Payment and charge activity flows into Zuora 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 Zuora
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 | Zuora objects | How this pairing syncs | |
|---|---|---|---|
| Campaigns Email and SMS sends expose performance data for warehouse-based reporting. | Product and Product Rate Plan (Product Catalog) The catalog of sellable products and their pricing; usually mastered elsewhere and written into Zuora, or read to map subscription charges. | Campaigns is specific to Klaviyo and Product and Product Rate Plan (Product Catalog) to Zuora — each maps to any object or custom field on the other side. | |
| Flows Automation definitions and their engagement data sync outward for attribution. | Invoice Billing documents generated from rate plan charges and order line items; typically read out into an ERP or GL for revenue recognition and reconciliation. | Flows is specific to Klaviyo and Invoice to Zuora — each maps to any object or custom field on the other side. | |
| Templates Message templates are accessible via API for content management workflows. | Payment Payment and refund transactions applied against invoices; read for cash application, dunning, and reconciliation reporting in the warehouse. | Templates is specific to Klaviyo and Payment to Zuora — 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. | Usage Metered consumption records; written into Zuora from a metering or warehouse pipeline so consumption-based charges are rated and invoiced. | Catalog Items is specific to Klaviyo and Usage to Zuora — each maps to any object or custom field on the other side. | |
| Tags Organizational labels on campaigns, flows, and lists support reporting rollups. | Order and Amendment Records of subscription create and change actions; written to Zuora to drive quote-to-cash and read for subscription change history. | Tags is specific to Klaviyo and Order and Amendment to Zuora — each maps to any object or custom field on the other side. | |
| Profiles Person records with arbitrary custom properties are the target for CRM and warehouse-sourced attributes. | Account (Billing Account) The customer billing entity holding contacts, payment methods, and billing settings; synced two-way as the parent record most other Zuora objects hang off. | Profiles is specific to Klaviyo and Account (Billing Account) to Zuora — each maps to any object or custom field on the other side. |
How changes propagate between Klaviyo and Zuora
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 Zuora Sub-second propagation
DetectionKlaviyo notifies Stacksync of record changes through webhook events. Polling on updated timestamps.
DeliveryEach detected change is written to Zuora through its API, with automatic retries and rate-limit backoff.
Zuora Klaviyo Sub-second propagation
DetectionZuora notifies Stacksync of record changes through webhook events. Incremental extraction on the indexed UpdatedDate column via ZOQL/AQuA stateful mode (high-water mark), plus Callout Notifications (webhooks) for.
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.
- Zuora: Concurrency limits: 40 concurrent requests by default, 80 for Object Queries, 200 for high-volume operations (doubled for Performance Booster); HTTP 429 on breach with exponential backoff; OAuth token endpoint is not bound by the limit.
What ships with Klaviyo ⇄ Zuora
Connect Klaviyo and Zuora for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Klaviyo–Zuora connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Klaviyo or Zuora 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 Zuora record.
Observability
Monitoring
Track your Klaviyo ⇄ Zuora 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 Zuora.
How the Klaviyo and Zuora 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
Zuora
- Integration surface
- REST API (v1) with Object Query, Data Query, and AQuA bulk export; legacy SOAP API also available
- Authentication
- OAuth 2.0 client credentials (bearer token, 3600s expiry); access is governed by the Zuora role of the OAuth client's associated user, with no granular scopes
- Change detection
- Incremental extraction on the indexed UpdatedDate column via ZOQL/AQuA stateful mode (high-water mark), plus Callout Notifications (webhooks) for event-driven changes
- Capabilities
- read · write · webhooks
- Rate limits
- Concurrency limits: 40 concurrent requests by default, 80 for Object Queries, 200 for high-volume operations (doubled for Performance Booster); HTTP 429 on breach with exponential backoff; OAuth token endpoint is not bound by the limit.
How it works
How to connect Klaviyo to Zuora — 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 Zuora 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
Zuora
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Klaviyo and Zuora 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 ⇄ ZuoraCustomers 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 ZuoraCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Klaviyo and Zuora integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Klaviyo and Zuora: authenticate both systems, choose the objects to sync (such as Klaviyo's Campaigns and Flows), map fields visually, and changes propagate both ways in milliseconds — no code required.
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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 Zuora 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 Zuora connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Klaviyo–Zuora integration in-house.
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Yes — Stacksync ships production-grade connectors for both Klaviyo and Zuora. 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 Zuora: Incremental extraction on the indexed UpdatedDate column via ZOQL/AQuA stateful mode (high-water mark), plus Callout Notifications (webhooks) for event-driven changes. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
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On the Zuora side: Rate Plan and Rate Plan Charge, Product and Product Rate Plan (Product Catalog), Invoice, Payment, plus custom fields where Zuora exposes them. On the Klaviyo side: Profiles, Lists, Segments, Events. Stacksync auto-detects both schemas and converts types between the two systems.
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.
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:
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