Skip to content
CRM ⇄ Business productivity

Apollo.io to eClinicalWorks integration — real-time, two-way sync

Keep Apollo.io and eClinicalWorks 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 Apollo.io and eClinicalWorks

Sync what happens in eClinicalWorks with the customer records in Apollo.io, in real time and in both directions.

The CRM is supposed to be the record of every customer relationship, but customer-relevant information also accumulates in the other tools a team runs. Whatever eClinicalWorks holds or produces that touches a customer, whether conversations, payments, replies, enriched data, or notes, the CRM only benefits if it arrives without someone copying it over.

Stacksync connects Encounters, Practitioners, Observations, Medications in eClinicalWorks to Accounts, People (database records), Sequences, Deals (Opportunities) in Apollo.io with bi-directional, real-time sync. Activity and record changes in eClinicalWorks update the matching contact or account in Apollo.io, and CRM data flows the other way wherever eClinicalWorks can store and use it.

Common use cases

  • Land encounter and billing-context data in a warehouse for utilization and revenue-cycle reporting.
  • Feed appointment events to reminder and messaging platforms to reduce no-shows.
  • Land sequence enrollment status and outcomes in a warehouse for outbound performance reporting.
  • Deduplicate contacts across Apollo and the CRM by syncing on email as the match key.

Where eClinicalWorks supplies contact or company data

Enriched fields land directly on records in Apollo.io, and refreshes keep them from going stale.

Where eClinicalWorks processes payments

Charges, refunds, and subscription changes appear on the account in Apollo.io, so revenue context lives with the relationship.

Where eClinicalWorks can store CRM context: fields kept current

Owner, lifecycle stage, or account details from Apollo.io sync into eClinicalWorks, so people working there have the context without switching tools.

What you can sync between Apollo.io and eClinicalWorks

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.

Apollo.io objects eClinicalWorks objects
Sequences Outreach cadences (emailer campaigns in the API); enrollment status is read to track which contacts are being worked. Immunizations Vaccination history exposed for registries and patient apps.
Deals (Opportunities) Pipeline records that can be read and written to keep Apollo aligned with the CRM of record. Documents Clinical notes and attachments referenced from the chart.
Tasks and calls Rep activity records synced for activity reporting and coaching workflows. Diagnostic reports Structured result reports grouping observations for a study or panel.
Custom fields Account- and contact-level custom attributes mapped field-by-field in a sync. Patients Demographic records exposed via FHIR Patient resources and HL7 ADT feeds; the anchor for all clinical syncs.
Contacts People saved to your Apollo account, synced with emails, phone numbers, and enrichment fields. Appointments Scheduling records available via FHIR and HL7 SIU messages, synced for reminders and outreach.
Accounts Company records with firmographic attributes, matched to CRM accounts during sync. Encounters Visit records tying diagnoses, providers, and billing context together.
What ships with Apollo.io ⇄ eClinicalWorks

Connect Apollo.io and eClinicalWorks for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Apollo.io–eClinicalWorks connection.

Real-time

Two-way sync

Changes in Apollo.io or eClinicalWorks instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Apollo.io or eClinicalWorks 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 Apollo.io or eClinicalWorks record.

Observability

Monitoring

Track your Apollo.io ⇄ eClinicalWorks sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions between Apollo.io and eClinicalWorks.

How the Apollo.io and eClinicalWorks connectors work

Apollo.io

Integration surface
REST API
Authentication
API key (passed in request headers); master keys unlock account-wide endpoints
Change detection
Polling on updated-at timestamps; webhook callbacks exist only for delivering asynchronous enrichment results, not as a general change-event stream
Capabilities
read · write
Rate limits
Rate limits and enrichment credits vary by plan; bulk endpoints are throttled separately from single-record calls

eClinicalWorks

Integration surface
FHIR R4 REST API plus HL7 v2 interfaces (ADT, SIU, ORU) through an interface engine
Authentication
OAuth 2.0 / SMART on FHIR for the FHIR API; site-configured credentials for HL7 interface connections
Change detection
HL7 interface feeds push event messages as they occur; the FHIR API is polled
Capabilities
read · write
Rate limits
Subject to the platform's API rate limits and interface throughput agreements
How it works

How to connect Apollo.io to eClinicalWorks — 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 Apollo.io and eClinicalWorks 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
    Apollo.io connected
    eClinicalWorks connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the Apollo.io and eClinicalWorks 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 · Apollo.io ⇄ eClinicalWorks
    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
    Apollo.io eClinicalWorks
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
Try interactive demo
FAQ

Apollo.io and eClinicalWorks 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 Apollo.io and eClinicalWorks.

Popular · 8 of 386
All Apollo.io integrations All eClinicalWorks integrations Browse all integrations
Coworkers laughing in front of a laptop in a casual office setting

Your last integration took months.
Your next one takes a prompt.

Book a demo Tour the platform on your own