Real-time
Real-time sync
Changes in Lemlist or Lusha instantly reflect in both systems. No stale data, no manual imports.
Business productivity
Lemlist to Lusha integration — real-time data sync
Keep Lemlist and Lusha 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 Fivetran
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Migrated from Celigo
Why teams connect Lemlist and Lusha
Flow Lusha data into Lemlist in real time — no exports, no schedulers, no custom scripts.
Lusha is a read-only source: Stacksync reads its data in real time and delivers it into Lemlist, so Lemlist always reflects the current state of Lusha — without exports, scripts, or schedulers.
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 Leads, Activities, Unsubscribes, Webhooks in Lemlist with Phone Numbers, Prospecting Results, Bulk Enrichment Requests, Person Profiles in Lusha 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
- Mirror campaign performance data into BI tools for outbound reporting across senders
- Sync replies, opens, and bounces from Lemlist into the CRM so outbound activity shows on lead and contact records
- Append firmographic company data to account records before territory or scoring runs.
- Build prospecting lists from Lusha search results and sync them into the CRM as leads.
Where Lusha is where the team documents or plans: keep its data fed
Information that originates in Lemlist stays current in Lusha 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 Lemlist and Lusha
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.
| Lemlist objects | Lusha objects | |
|---|---|---|
| Team Members Sender and seat records map outreach activity to reps in other systems. | Email Addresses Work emails written into CRM contact fields during enrichment. | |
| Campaigns Outreach campaigns are the container leads are pushed into from CRMs and list-building workflows. | Phone Numbers Direct-dial and mobile numbers appended for outbound calling workflows. | |
| Leads Per-campaign prospect records sync in from enrichment sources and back out with status. | Prospecting Results Search-based lists of people and companies matching filters, used to seed lead lists. | |
| Activities Engagement records such as opens, clicks, replies, and bounces sync to CRM timelines. | Bulk Enrichment Requests Batch lookups that enrich multiple records per request, used to backfill large contact lists rather than one-off calls. | |
| Unsubscribes Opt-out records propagate to other outreach tools and the CRM for compliance. | Person Profiles Contact-level enrichment results (work emails, phone numbers, title, company) returned per lookup. | |
| Webhooks Hook subscriptions define which activity events are pushed to external endpoints. | Company Profiles Firmographic records (industry, size, location) appended to account or company rows. |
What ships with Lemlist ⇄ Lusha
Connect Lemlist and Lusha for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Lemlist–Lusha connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Lemlist or Lusha 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 Lemlist or Lusha record.
Observability
Monitoring
Track your Lemlist ⇄ Lusha sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Lemlist and Lusha.
How the Lemlist and Lusha connectors work
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
Lusha
- Integration surface
- REST API
- Authentication
- API key
- Change detection
- Not event-driven; data is fetched on demand per lookup, so syncs poll or trigger enrichment when source records change
- Capabilities
- read
- Rate limits
- Lookups consume credits and are subject to the platform's API rate limits.
How it works
How to connect Lemlist to Lusha — 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 Lemlist and Lusha with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Lemlist
connected
Lusha
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Lemlist and Lusha 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 · Lemlist ⇄ LushaCustomers 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.
Lemlist LushaCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Lemlist and Lusha integration FAQ
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Yes. Stacksync provides a managed, real-time integration between Lemlist and Lusha — Lusha is a read-only source, so data flows from it into the other system: authenticate both systems, choose the objects to sync, map fields visually, and changes propagate in milliseconds — no code required.
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Common patterns for Lemlist and Lusha: Where Lusha is where the team documents or plans: keep its data fed; Handoffs between teams; Where both tools track people or companies: one consistent record. Information that originates in Lemlist stays current in Lusha instead of going stale after a one-time paste.
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Lemlist: REST API. Authentication: API key. Lusha: REST API. Authentication: API key. Stacksync manages authentication, retries, and rate limits on both sides.
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Lemlist: Lemlist's data model attaches leads to campaigns, so cross-campaign views of a prospect are assembled by the consuming system rather than provided natively, which makes CRM sync the practical system of record. Lusha: It exposes separate person and company endpoints, so contact and account enrichment are distinct calls. Stacksync's field mapping accounts for these differences between Lemlist and Lusha without custom code.
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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 Lemlist and Lusha 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 Lemlist and Lusha connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Lemlist–Lusha integration in-house.
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.
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:
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