Real-time
Two-way sync
Changes in Klaviyo or Sage X3 instantly reflect in both systems. No stale data, no manual imports.
Business productivity ⇄ ERP
Klaviyo to Sage X3 integration — real-time, two-way sync
Keep Klaviyo and Sage X3 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 Sage X3
Bridge the tools people work in and the system the business runs on: real-time, two-way sync between Klaviyo and Sage X3.
The ERP holds the records the business is run on, and it is rarely where day-to-day work happens. Klaviyo is closer to the work, and the two often need the same facts about the same people, organizations, and transactions. Bridging them by hand, or by nightly file transfer, leaves each side out of date for hours at a time.
Stacksync syncs Events, Metrics, Campaigns, Flows in Klaviyo with Sales Orders, Purchase Orders, Work Orders, Stock / Inventory by site in Sage X3 bi-directionally and in real time, with field-level mapping and rules for which system wins on conflict. Changes made where the work happens reach the system of record within seconds, and the reverse.
Common use cases
- Push offline, ERP, or subscription order events into Klaviyo as metrics to trigger post-purchase and win-back flows
- Mirror campaign and flow engagement events into a warehouse for revenue attribution alongside order data
- Replicate GL journals and sales history to a warehouse for multi-company, multi-legislation reporting.
- Feed work order and BOM data to MES or planning tools on the shop floor.
Where Klaviyo faces customers and Sage X3 carries account records
Order, invoice, or account status from Sage X3 appears alongside the customer in Klaviyo, so front-line teams answer from live data.
Where Klaviyo collects payments: transactions post through
Payment events sync into Sage X3 as they occur, keeping the enterprise records current without manual entry.
Where Sage X3 is the HR or people system of record
Worker and organization data from Sage X3 stays current in Klaviyo, so the tools people use daily reflect the org as it actually is.
What you can sync between Klaviyo and Sage X3
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 | Sage X3 objects | |
|---|---|---|
| Segments Dynamic audiences are readable so other tools can mirror who qualifies. | Deliveries Shipment documents synced to logistics providers and customer portals. | |
| Events Timestamped behavioral records tied to metrics; external order and product events are pushed in to trigger flows. | Business Partners (Customers and Suppliers) Shared partner master synced with CRMs and procurement systems. | |
| Metrics Event type definitions organize the activity stream used in segmentation and attribution. | Products Item master with units, costing, and site data, synced to commerce and PLM tools. | |
| Campaigns Email and SMS sends expose performance data for warehouse-based reporting. | Sales Orders Order documents written from external channels and read for fulfillment status. | |
| Flows Automation definitions and their engagement data sync outward for attribution. | Purchase Orders Procurement documents synced with supplier-facing systems. | |
| Templates Message templates are accessible via API for content management workflows. | Work Orders Production orders read by MES and scheduling integrations. |
What ships with Klaviyo ⇄ Sage X3
Connect Klaviyo and Sage X3 for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Klaviyo–Sage X3 connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Klaviyo or Sage X3 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 Sage X3 record.
Observability
Monitoring
Track your Klaviyo ⇄ Sage X3 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 Sage X3.
How the Klaviyo and Sage X3 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
Sage X3
- Integration surface
- SOAP and REST web services published from X3 business objects; direct SQL access to the underlying database on-prem
- Authentication
- Dedicated web-service user credentials (Basic auth) against configured connection pools
- Change detection
- Scheduled polling; no general webhook surface on the classic web services layer
- Capabilities
- read · write
How it works
How to connect Klaviyo to Sage X3 — 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 Sage X3 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
Sage X3
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Klaviyo and Sage X3 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 ⇄ Sage X3Customers 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 Sage X3Company company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Klaviyo and Sage X3 integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Klaviyo and Sage X3: authenticate both systems, choose the objects to sync (such as Klaviyo's Segments and Events), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Common patterns for Klaviyo and Sage X3: Where Klaviyo faces customers and Sage X3 carries account records; Where Klaviyo collects payments: transactions post through; Where Sage X3 is the HR or people system of record. Order, invoice, or account status from Sage X3 appears alongside the customer in Klaviyo, so front-line teams answer from live data.
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Klaviyo: REST API compliant with the JSON:API specification. Authentication: OAuth 2.0 for apps or private API keys. Sage X3: SOAP and REST web services published from X3 business objects; direct SQL access to the underlying database on-prem. Authentication: Dedicated web-service user credentials (Basic auth) against configured connection pools. Stacksync manages authentication, retries, and rate limits on both sides.
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Klaviyo: API versioning is handled with a date-based revision header, letting integrations pin behavior to a specific release. Sage X3: X3 runs on Oracle or SQL Server, so read-only SQL access to the underlying database is a common on-prem pattern for analytics extraction. Stacksync's field mapping accounts for these differences between Klaviyo and Sage X3 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 Sage X3 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 Sage X3 connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Klaviyo–Sage X3 integration in-house.
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
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No integrations match .
