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eClinicalWorks to Lemlist integration — real-time, two-way sync

Keep eClinicalWorks and Lemlist 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 eClinicalWorks and Lemlist

Stop re-entering the same information in eClinicalWorks and Lemlist: 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 Patients, Appointments, Encounters, Practitioners in eClinicalWorks with Campaigns, Leads, Activities, Unsubscribes in Lemlist 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 patient demographics and appointments into a CRM so patient outreach and intake teams work from current data.
  • Land encounter and billing-context data in a warehouse for utilization and revenue-cycle reporting.
  • Propagate unsubscribes and bounces back to the CRM and other outreach tools for suppression compliance
  • Stop or pause sequences automatically when a reply converts to a deal in the CRM

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

Information that originates in eClinicalWorks stays current in Lemlist instead of going stale after a one-time paste.

Handoffs between teams

When work started in one tool continues in the other, the shared fields travel with it automatically.

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.

What you can sync between eClinicalWorks and Lemlist

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.

eClinicalWorks objects Lemlist objects
Immunizations Vaccination history exposed for registries and patient apps. Webhooks Hook subscriptions define which activity events are pushed to external endpoints.
Documents Clinical notes and attachments referenced from the chart. Team Members Sender and seat records map outreach activity to reps in other systems.
Diagnostic reports Structured result reports grouping observations for a study or panel. Campaigns Outreach campaigns are the container leads are pushed into from CRMs and list-building workflows.
Patients Demographic records exposed via FHIR Patient resources and HL7 ADT feeds; the anchor for all clinical syncs. Leads Per-campaign prospect records sync in from enrichment sources and back out with status.
Appointments Scheduling records available via FHIR and HL7 SIU messages, synced for reminders and outreach. Activities Engagement records such as opens, clicks, replies, and bounces sync to CRM timelines.
Encounters Visit records tying diagnoses, providers, and billing context together. Unsubscribes Opt-out records propagate to other outreach tools and the CRM for compliance.
What ships with eClinicalWorks ⇄ Lemlist

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

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

Real-time

Two-way sync

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

No-code + pro-code

Workflow automation

Trigger automated workflows whenever eClinicalWorks or Lemlist 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 eClinicalWorks or Lemlist record.

Observability

Monitoring

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

Trading partners

EDI

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

How the eClinicalWorks and Lemlist connectors work

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

Lemlist

Integration surface
REST API
Authentication
API key
Change detection
Webhooks on outreach activity events, plus polling
Capabilities
read · write · webhooks
Rate limits
Subject to the platform's API rate limits
How it works

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

    Choose tables

    Pick the eClinicalWorks and Lemlist 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 · eClinicalWorks ⇄ Lemlist
    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
    eClinicalWorks Lemlist
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

eClinicalWorks and Lemlist 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 eClinicalWorks and Lemlist.

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