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Business productivity ⇄ ERP

Customer.io to Körber WMS integration — real-time, two-way sync

Keep Customer.io and Körber WMS 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 Customer.io and Körber WMS

Bridge the tools people work in and the system the business runs on: real-time, two-way sync between Customer.io and Körber WMS.

The ERP holds the records the business is run on, and it is rarely where day-to-day work happens. Customer.io 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 Bridging them by hand, or by nightly file transfer, leaves each side out of date for hours at a time.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, Segments, Campaigns, Broadcasts in Customer.io with Tasks, Returns, Items, Inventory in Körber WMS 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 account-level objects and their person relationships for B2B messaging keyed to company attributes.
  • Sync product usage and billing attributes from Postgres onto Customer.io people so lifecycle campaigns trigger on real product behavior.
  • Sync inventory positions from Körber WMS to an OMS or e-commerce platform so sellable stock reflects the warehouse
  • Push orders from the ERP into the WMS for fulfillment and return shipment confirmations automatically

Master data corrections travel

A customer, supplier, or contact detail corrected in either system updates the other, ending duplicate maintenance.

Where Customer.io faces customers and Körber WMS carries account records

Order, invoice, or account status from Körber WMS appears alongside the customer in Customer.io, so front-line teams answer from live data.

Where Customer.io collects payments: transactions post through

Payment events sync into Körber WMS as they occur, keeping the enterprise records current without manual entry.

What you can sync between Customer.io and Körber WMS

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.

Customer.io objects Körber WMS objects
Segments Attribute- or event-based groups; data syncs feed the attributes segments evaluate. Locations Bin and zone definitions scope inventory data during mapping.
Campaigns Automated workflows whose membership and metrics can be read via the App API. Tasks Warehouse task data supports labor and throughput reporting.
Broadcasts One-off sends to segments or audiences, triggerable via API. Returns Return receipts flow back to commerce and ERP systems for refunds and restocking.
Deliveries / Messages Per-recipient message records whose lifecycle events flow out through reporting webhooks. Items Item definitions keep the WMS aligned with the ERP item master.
Newsletters Recurring email sends with performance metrics available for reporting syncs. Inventory On-hand quantities by location feed availability in order-taking systems.
People Profiles with attributes, matched on identifiers like id or email; the main write target of data syncs. Receipts / ASNs Inbound notices and receipt confirmations sync with procurement systems.
What ships with Customer.io ⇄ Körber WMS

Connect Customer.io and Körber WMS for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Customer.io–Körber WMS connection.

Real-time

Two-way sync

Changes in Customer.io or Körber WMS instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Customer.io or Körber WMS 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 Customer.io or Körber WMS record.

Observability

Monitoring

Track your Customer.io ⇄ Körber WMS sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions between Customer.io and Körber WMS.

How the Customer.io and Körber WMS connectors work

Customer.io

Integration surface
REST APIs split by purpose: Track API for data ingestion, App API for campaigns, people lookups, and messages
Authentication
Basic auth with site ID and API key for the Track API; bearer token for the App API
Change detection
Reporting webhooks push message and delivery events; person attribute changes are not streamed and require source-side detection
Capabilities
read · write · webhooks
Rate limits
Subject to per-API rate limits documented by Customer.io

Körber WMS

Integration surface
Varies by deployment; typically host-interface messages, file exchange, or vendor APIs via middleware
Authentication
Credentials issued per deployment
Change detection
Polling or message/file-based export from the WMS host interface
Capabilities
read · write
Rate limits
Constrained by deployment architecture rather than published API rate limits
How it works

How to connect Customer.io to Körber WMS — 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 Customer.io and Körber WMS 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
    Customer.io connected
    Körber WMS connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the Customer.io and Körber WMS 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 · Customer.io ⇄ Körber WMS
    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
    Customer.io Körber WMS
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

Customer.io and Körber WMS integration FAQ

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.

Learn more about security
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:

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 386 integrations available for Customer.io and Körber WMS.

Popular · 8 of 386
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