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Customer.io to NextGen Healthcare integration — real-time, two-way sync

Keep Customer.io and NextGen Healthcare 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 NextGen Healthcare

Stop re-entering the same information in Customer.io and NextGen Healthcare: Stacksync keeps the records they share consistent in real time, in both directions.

Two tools in the daily stack often hold overlapping information: the same people, the same companies, or the same pieces of work, described twice. The tools do different jobs, so consolidating is not the answer; the overlap just needs to stop drifting.

Stacksync syncs People, Objects, Events, Segments in Customer.io with Appointments, Encounters, Providers, Clinical Documents in NextGen Healthcare in real time. You choose which records overlap, map the fields that should match, and pick a direction or let changes flow both ways. From then on, an update made in either tool is reflected in the other within seconds, without exports or copy-paste.

Because the sync is field-level, each tool keeps its own extras; only the shared data is held in agreement.

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.
  • Land encounters and charges in a warehouse for revenue-cycle and utilization analytics.
  • Keep provider directories consistent between the EHR, the website, and scheduling tools.

Where both tools track people or companies: one consistent record

Contact and company details corrected in either tool update the other, so nobody works from the old version.

Where one tool produces events: mirror them in the other

Payments, replies, messages, or tickets created in one tool can create or update matching records in the other, keeping context in one place.

Where NextGen Healthcare is where the team documents or plans: keep its data fed

Information that originates in Customer.io stays current in NextGen Healthcare instead of going stale after a one-time paste.

What you can sync between Customer.io and NextGen Healthcare

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 NextGen Healthcare objects
Deliveries / Messages Per-recipient message records whose lifecycle events flow out through reporting webhooks. Charges & Billing Practice-management financial data synced for revenue-cycle analytics.
Newsletters Recurring email sends with performance metrics available for reporting syncs. Patients Demographic records synced to CRMs and engagement tools for outreach and intake.
People Profiles with attributes, matched on identifiers like id or email; the main write target of data syncs. Appointments Schedule data read and written for reminders, self-scheduling, and capacity reporting.
Objects Non-person entities such as accounts or companies, related to people for account-level messaging. Encounters Visit records landed in analytics stores for utilization and quality reporting.
Events Behavioral events sent via the Track API that trigger campaigns. Providers Clinician and location directories kept consistent across scheduling and web systems.
Segments Attribute- or event-based groups; data syncs feed the attributes segments evaluate. Clinical Documents Notes and attachments exchanged with referral and document-management workflows.
What ships with Customer.io ⇄ NextGen Healthcare

Connect Customer.io and NextGen Healthcare for flexible, real-time data sync.

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

Real-time

Two-way sync

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

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Customer.io or NextGen Healthcare 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 NextGen Healthcare record.

Observability

Monitoring

Track your Customer.io ⇄ NextGen Healthcare 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 NextGen Healthcare.

How the Customer.io and NextGen Healthcare 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

NextGen Healthcare

Integration surface
REST API, including FHIR-based endpoints published through NextGen's developer API program
Authentication
OAuth 2.0
Change detection
Polling, typically filtering on last-updated timestamps; no general-purpose webhook surface
Capabilities
read · write
Rate limits
Subject to the platform's API rate limits and healthcare data-access agreements.
How it works

How to connect Customer.io to NextGen Healthcare — 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 NextGen Healthcare 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
    NextGen Healthcare connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the Customer.io and NextGen Healthcare 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 ⇄ NextGen Healthcare
    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 NextGen Healthcare
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

Customer.io and NextGen Healthcare 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 NextGen Healthcare.

Popular · 8 of 386
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