Real-time
Two-way sync
Changes in Klaviyo or Sage 100 instantly reflect in both systems. No stale data, no manual imports.
Business productivity ⇄ ERP
Klaviyo to Sage 100 integration — real-time, two-way sync
Keep Klaviyo and Sage 100 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
Case study
Migrated from Celigo
Why teams connect Klaviyo and Sage 100
Bridge the tools people work in and the system the business runs on: real-time, two-way sync between Klaviyo and Sage 100.
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 Bridging them by hand, or by nightly file transfer, leaves each side out of date for hours at a time.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 Tags, Profiles, Lists, Segments in Klaviyo with Purchase Orders, GL Accounts, Journal Entries, Customers in Sage 100 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
- Sync catalog items from an ERP or PIM so product recommendations and back-in-stock flows use current data
- Sync customer profiles between Klaviyo and the CRM or warehouse so segments can use fields beyond storefront data
- Replicate GL and sales history to a warehouse or Postgres database for reporting off the on-premise system.
- Sync customers, invoices, and payment status into a CRM so sales sees AR standing without opening the ERP.
Where Sage 100 is the HR or people system of record
Worker and organization data from Sage 100 stays current in Klaviyo, so the tools people use daily reflect the org as it actually is.
Master data corrections travel
A customer, supplier, or contact detail corrected in either system updates the other, ending duplicate maintenance.
Where Klaviyo faces customers and Sage 100 carries account records
Order, invoice, or account status from Sage 100 appears alongside the customer in Klaviyo, so front-line teams answer from live data.
What you can sync between Klaviyo and Sage 100
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 100 objects | |
|---|---|---|
| Templates Message templates are accessible via API for content management workflows. | Journal Entries Posted GL activity replicated to warehouses for FP&A. | |
| Catalog Items Product catalog records synced from an ERP or PIM power product blocks and back-in-stock triggers. | Customers AR customer master records synced to CRMs for account and credit visibility. | |
| Tags Organizational labels on campaigns, flows, and lists support reporting rollups. | Vendors AP vendor master records synced with procurement and payment tools. | |
| Profiles Person records with arbitrary custom properties are the target for CRM and warehouse-sourced attributes. | Inventory Items Item master with pricing and quantities, synced to e-commerce catalogs. | |
| Lists Static audience memberships sync in from CRMs and forms for targeting. | Sales Orders Order headers and lines, the usual write target for web and EDI orders. | |
| Segments Dynamic audiences are readable so other tools can mirror who qualifies. | AR Invoices Billing documents synced outward for payment status and revenue reporting. |
What ships with Klaviyo ⇄ Sage 100
Connect Klaviyo and Sage 100 for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Klaviyo–Sage 100 connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Klaviyo or Sage 100 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 100 record.
Observability
Monitoring
Track your Klaviyo ⇄ Sage 100 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 100.
How the Klaviyo and Sage 100 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 100
- Integration surface
- ODBC (ProvideX driver) for reads; Business Object Interface (BOI) or Sage-provided web services for writes
- Authentication
- Sage 100 company and user credentials; ODBC DSN credentials for direct reads
- Change detection
- Scheduled polling; no webhooks or change log on the integration surface
- Capabilities
- read · write
How it works
How to connect Klaviyo to Sage 100 — 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 100 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 100
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Klaviyo and Sage 100 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 100Customers 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 100Company company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Klaviyo and Sage 100 integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Klaviyo and Sage 100: authenticate both systems, choose the objects to sync (such as Klaviyo's Templates and Catalog Items), map fields visually, and changes propagate both ways in milliseconds — no code required.
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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 Sage 100: Scheduled polling; no webhooks or change log on the integration surface. 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 Klaviyo side: Tags, Profiles, Lists, Segments, plus custom fields where Klaviyo exposes them. On the Sage 100 side: Purchase Orders, GL Accounts, Journal Entries, Customers. Stacksync auto-detects both schemas and converts types between the two systems.
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Yes. Each object mapping can be bidirectional or restricted to a single direction (both systems accept writes). Read-only mirrors, one-way pushes, and full two-way sync can be mixed in the same integration.
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Common patterns for Klaviyo and Sage 100: Where Sage 100 is the HR or people system of record; Master data corrections travel; Where Klaviyo faces customers and Sage 100 carries account records. Worker and organization data from Sage 100 stays current in Klaviyo, so the tools people use daily reflect the org as it actually is.
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Klaviyo: REST API compliant with the JSON:API specification. Authentication: OAuth 2.0 for apps or private API keys. Sage 100: ODBC (ProvideX driver) for reads; Business Object Interface (BOI) or Sage-provided web services for writes. Authentication: Sage 100 company and user credentials; ODBC DSN credentials for direct reads. Stacksync manages authentication, retries, and rate limits on both sides.
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 Sage 100.
Popular · 8 of 386
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Klaviyo ⇄ Manhattan Associates WMS -
Klaviyo ⇄ Microsoft Dynamics GP - Klaviyo ⇄ Microsoft Dynamics NAV
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Klaviyo ⇄ Plex ERP -
Sage 100 ⇄ Google Sheets -
Sage 100 ⇄ Lemlist -
Sage 100 ⇄ Lusha -
Sage 100 ⇄ Microsoft 365
No integrations match .
