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Business productivity ⇄ ERP

Lemlist to Unleashed Software integration — real-time, two-way sync

Keep Lemlist and Unleashed Software 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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Why teams connect Lemlist and Unleashed Software

Bridge the tools people work in and the system the business runs on: real-time, two-way sync between Lemlist and Unleashed Software.

The ERP holds the records the business is run on, and it is rarely where day-to-day work happens. Lemlist is closer to the work, and the two often need the same facts about the same people, organizations, and transactions. Bridging them by hand, or by nightly file transfer, leaves each side out of date for hours at a time.

Stacksync syncs Leads, Activities, Unsubscribes, Webhooks in Lemlist with Invoices, Products, Stock On Hand, Sales Orders in Unleashed Software bi-directionally and in real time, with field-level mapping and rules for which system wins on conflict. Changes made where the work happens reach the system of record within seconds, and the reverse.

Common use cases

  • Stop or pause sequences automatically when a reply converts to a deal in the CRM
  • Mirror campaign performance data into BI tools for outbound reporting across senders
  • Sync Customers bi-directionally with a CRM so credit terms and delivery addresses match everywhere.
  • Sync Stock On Hand into an ecommerce platform or CRM so quotes and listings reflect real availability.

Where Lemlist faces customers and Unleashed Software carries account records

Order, invoice, or account status from Unleashed Software appears alongside the customer in Lemlist, so front-line teams answer from live data.

Where Unleashed Software is the HR or people system of record

Worker and organization data from Unleashed Software stays current in Lemlist, so the tools people use daily reflect the org as it actually is.

Master data corrections travel

A customer, supplier, or contact detail corrected in either system updates the other, ending duplicate maintenance.

What you can sync between Lemlist and Unleashed Software

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 Unleashed Software objects
Leads Per-campaign prospect records sync in from enrichment sources and back out with status. Customers Buyer records with pricing tiers and delivery addresses.
Activities Engagement records such as opens, clicks, replies, and bounces sync to CRM timelines. Suppliers Vendor records referenced on purchase orders.
Unsubscribes Opt-out records propagate to other outreach tools and the CRM for compliance. Warehouses Stock locations that scope inventory quantities and order fulfillment.
Webhooks Hook subscriptions define which activity events are pushed to external endpoints. Stock Adjustments Manual quantity or value corrections synced for audit and reporting.
Team Members Sender and seat records map outreach activity to reps in other systems. Bills of Materials Production definitions used by assemblies; relevant for manufacturers syncing production data.
Campaigns Outreach campaigns are the container leads are pushed into from CRMs and list-building workflows. Invoices Sales invoices raised from orders, synced into accounting systems.
What ships with Lemlist ⇄ Unleashed Software

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

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

Real-time

Two-way sync

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

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Lemlist or Unleashed Software 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 Unleashed Software record.

Observability

Monitoring

Track your Lemlist ⇄ Unleashed Software 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 Unleashed Software.

How the Lemlist and Unleashed Software 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

Unleashed Software

Integration surface
REST API
Authentication
API ID plus API key, with each request signed using an HMAC-SHA256 of the query string
Change detection
Polling with modified-date filters on list endpoints
Capabilities
read · write
Rate limits
Subject to the platform's API rate limits; paginate list endpoints and batch where possible.
How it works

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

    Choose tables

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

Lemlist and Unleashed Software 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 Lemlist and Unleashed Software.

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