Real-time
Two-way sync
Changes in Customer.io or Ukg Ready instantly reflect in both systems. No stale data, no manual imports.
Business productivity ⇄ Human resources
Customer.io to Ukg Ready integration — real-time, two-way sync
Keep Customer.io and Ukg Ready 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 Celigo
Migrated from Heroku Connect
Migrated from Matillion
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Migrated from Fivetran
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Migrated from Celigo
Why teams connect Customer.io and Ukg Ready
Keep the people, teams, and status that Customer.io and Ukg Ready share aligned in real time, so a hire, role change, or departure recorded in one reaches the other within seconds.
Each tool in Customer.io keeps its own list of who can use it: users, members, or agents, along with the team they sit on and whether they are still active. Ukg Ready is the authoritative record of the same people as employees, with their department, manager, and employment status. When those two are connected only by manual account admin or a periodic export, the work tools drift: new hires wait days for access, team and manager changes never catch up, and people who have left keep standing accounts.
Stacksync syncs Events, Segments, Campaigns, Broadcasts in Customer.io with Accruals / Time Off, Payroll (Earnings / Deductions / Employee Payroll Runs), Benefits, Cost Centers / Groups in Ukg Ready bi-directionally and in real time. A person added, moved, or offboarded in Ukg Ready creates or updates the matching user in Customer.io within seconds, with field-level mapping and conflict resolution in place of spreadsheets and one-off account changes. Where Customer.io captures details of its own, such as a corrected contact or a login identity, those can flow back to Ukg Ready in whichever direction you configure.
Because the sync is field-level, each system keeps its own extras; only the shared facts, who a person is, which team they belong to, and whether their access should be on, are held in agreement.
Common use cases
- 01 Land delivery and engagement events (sent, opened, clicked, bounced) from reporting webhooks into a warehouse for attribution analysis.
- 02 Keep unsubscribe and subscription-preference state consistent between Customer.io and the CRM to avoid compliance gaps.
- 03 Feed Timesheet Entries and Accruals/Time Off into a data warehouse for labor-cost, overtime, and PTO-liability reporting.
- 04 Mirror Cost Centers/Groups and Compensation into finance and planning systems for headcount and budget reconciliation.
Common sync patterns
One employee directory
A person's name, title, contact details, or status corrected in either system updates the other, so both sides stop maintaining separate copies of the same person.
Org and team structure kept current
Department, team, and reporting-line changes from Ukg Ready keep the groups, queues, or projects in Customer.io assigned to the right people.
Where Customer.io routes or assigns work by person: assignments follow the org
When someone changes teams or managers in Ukg Ready, the queues, ownership, or approvals in Customer.io update to match, so work reaches whoever holds the role now.
What you can sync between Customer.io and Ukg Ready
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 | Ukg Ready objects | How this pairing syncs | |
|---|---|---|---|
| Segments Attribute- or event-based groups; data syncs feed the attributes segments evaluate. | Compensation Salary or hourly rate, pay frequency, and FLSA status; often mastered elsewhere and written onto the employee record, or read into finance. | Segments is specific to Customer.io and Compensation to Ukg Ready — each maps to any object or custom field on the other side. | |
| Campaigns Automated workflows whose membership and metrics can be read via the App API. | Timesheet Entries Time-and-attendance punches, hours worked, and breaks; written from external time systems and read into warehouses for labor-cost reporting. | Campaigns is specific to Customer.io and Timesheet Entries to Ukg Ready — each maps to any object or custom field on the other side. | |
| Broadcasts One-off sends to segments or audiences, triggerable via API. | Accruals / Time Off PTO balances, requests, and approver status; read for liability reporting and requests can be created against employee records. | Broadcasts is specific to Customer.io and Accruals / Time Off to Ukg Ready — each maps to any object or custom field on the other side. | |
| Deliveries / Messages Per-recipient message records whose lifecycle events flow out through reporting webhooks. | Payroll (Earnings / Deductions / Employee Payroll Runs) Earnings and deductions can be imported into pay runs; Employee Payroll Runs (gross, net, taxes) read back for GL posting and analytics. | Deliveries / Messages is specific to Customer.io and Payroll (Earnings / Deductions / Employee Payroll Runs) to Ukg Ready — each maps to any object or custom field on the other side. | |
| Newsletters Recurring email sends with performance metrics available for reporting syncs. | Benefits Plan enrollments, coverage tiers, contributions, and effective dates; typically read into benefits or finance systems. | Newsletters is specific to Customer.io and Benefits to Ukg Ready — each maps to any object or custom field on the other side. | |
| People Profiles with attributes, matched on identifiers like id or email; the main write target of data syncs. | Cost Centers / Groups Departments, locations, and hierarchy used as org structure; read to align headcount and budget models across systems. | People is specific to Customer.io and Cost Centers / Groups to Ukg Ready — each maps to any object or custom field on the other side. |
How changes propagate between Customer.io and Ukg Ready
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.
Customer.io Ukg Ready Sub-second propagation
DetectionCustomer.io notifies Stacksync of record changes through webhook events. Reporting webhooks push message and delivery events.
DeliveryEach detected change is written to Ukg Ready through its API, with automatic retries and rate-limit backoff.
Ukg Ready Customer.io Sub-second propagation
DetectionUkg Ready notifies Stacksync of record changes through webhook events. UKG Webhooks for select events (employee.created, employee.updated, account/org changes) with HMAC signing.
DeliveryEach detected change is written to Customer.io through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Customer.io: Subject to per-API rate limits documented by Customer.io.
- Ukg Ready: Rate limits apply over roughly a 1-minute window and return HTTP 429 when exceeded (back off / exponential retry); UKG Webhooks run on a tiered quota with a free tier around 10,000 event notifications per month and 14-day event retention.
What ships with Customer.io ⇄ Ukg Ready
Connect Customer.io and Ukg Ready for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Customer.io–Ukg Ready connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Customer.io or Ukg Ready 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 Ukg Ready record.
Observability
Monitoring
Track your Customer.io ⇄ Ukg Ready 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 Ukg Ready.
How the Customer.io and Ukg Ready 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
Ukg Ready
- Integration surface
- UKG Ready REST API (v1/v2) plus the Import Tool (XML transactions) and Report-as-a-Service (IBM Cognos); a legacy SOAP API also exists
- Authentication
- A 7-digit company short name, a Web API key (Company Setup > Login Config), and a dedicated API service-account user (username/password) are exchanged for a session Bearer token sent on every request; Onboarding/Recruiting endpoints use a separate authorization token
- Change detection
- UKG Webhooks for select events (employee.created, employee.updated, account/org changes) with HMAC signing; broad change capture via polling REST endpoints with date filters or scheduled Report-as-a-Service extracts
- Capabilities
- read · write · webhooks
- Rate limits
- Rate limits apply over roughly a 1-minute window and return HTTP 429 when exceeded (back off / exponential retry); UKG Webhooks run on a tiered quota with a free tier around 10,000 event notifications per month and 14-day event retention
How it works
How to connect Customer.io to Ukg Ready — 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 Customer.io and Ukg Ready with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Customer.io
connected
Ukg Ready
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Customer.io and Ukg Ready 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 · Customer.io ⇄ Ukg ReadyCustomers 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.
Customer.io Ukg ReadyCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Customer.io and Ukg Ready integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Customer.io and Ukg Ready: authenticate both systems, choose the objects to sync (such as Customer.io's Segments and Campaigns), 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 Customer.io and Ukg Ready 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 Customer.io and Ukg Ready connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Customer.io–Ukg Ready integration in-house.
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Yes — Stacksync ships production-grade connectors for both Customer.io and Ukg Ready. 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 Customer.io: Reporting webhooks push message and delivery events; person attribute changes are not streamed and require source-side detection. On Ukg Ready: UKG Webhooks for select events (employee.created, employee.updated, account/org changes) with HMAC signing; broad change capture via polling REST endpoints with date filters or scheduled Report-as-a-Service extracts. 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 Customer.io side: Events, Segments, Campaigns, Broadcasts, plus custom fields where Customer.io exposes them. On the Ukg Ready side: Accruals / Time Off, Payroll (Earnings / Deductions / Employee Payroll Runs), Benefits, Cost Centers / Groups. 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
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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