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CRM

HubSpot to Intercom integration — real-time, two-way sync

Keep HubSpot and Intercom 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
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Adopted by fast-scaling companies moving mission-critical data in real time

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Why teams connect HubSpot and Intercom

Run HubSpot and Intercom side by side with the same accounts and contacts in both, whether they serve different teams or one is replacing the other.

Two CRMs in one company is more common than anyone plans for: an acquisition brings its own system, regions or business units standardize differently, or a migration is under way and both are live. In every case, some of the same companies and people exist in both systems, and every day of manual double entry pushes the copies further apart.

Stacksync syncs Owner, Pipeline, Stages, Audit in HubSpot with Articles, Contacts, Companies, Conversations in Intercom in real time and in both directions, with field-level mapping and matching on identifiers you choose. Update a record in either CRM and the other reflects it within seconds.

Common use cases

  • 01 Write warehouse-computed lead and account scores back to HubSpot properties on a schedule or in near real time.
  • 02 Sync HubSpot Tickets with an internal support database to unify service reporting across channels.
  • 03 Keep custom data attributes updated from billing or ERP systems so message segments reflect current plan and spend
  • 04 Route qualified leads from Intercom conversations into the CRM as leads or opportunities in near real time

Common sync patterns

Migration with a parallel run

When one CRM is replacing the other, run both fully live until cutover, with no snapshot gap and no data freeze.

Divisional or regional split

Where each CRM serves a different team or region, sync just the shared accounts and contacts so handoffs and cross-sell work.

Where both track pipeline: deal visibility across systems

Deal stage and value on shared accounts stay visible from either CRM.

What you can sync between HubSpot and Intercom

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.

HubSpot objects Intercom objects How this pairing syncs
Contact Synced with incremental and full sync per the Stacksync docs. Contacts A single contact model covers both users and leads, distinguished by a role attribute. Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions.
Company Synced with incremental and full sync per the Stacksync docs. Companies Company records group contacts and carry plan and account attributes used in segmentation. Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions.
Ticket Synced with incremental and full sync per the Stacksync docs. Tickets Structured ticket records track issues alongside conversational threads. Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions.
Line Item Synced with incremental and full sync per the Stacksync docs. Admins & Teams Teammate records map conversation ownership to CRM users. Line Item is specific to HubSpot and Admins & Teams to Intercom — each maps to any object or custom field on the other side.
Product Synced with incremental and full sync per the Stacksync docs. Articles Help center content is accessible via API for knowledge sync and audits. Product is specific to HubSpot and Articles to Intercom — each maps to any object or custom field on the other side.
Quote Synced with incremental and full sync per the Stacksync docs. Conversations Support and sales threads sync outward for analytics and CRM context. Quote is specific to HubSpot and Conversations to Intercom — each maps to any object or custom field on the other side.

How changes propagate between HubSpot and Intercom

Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.

HubSpot Intercom Sub-second propagation

DetectionHubSpot pushes changes as they happen — webhook events backed by change data capture. Records: incremental near-real-time change tracking.

DeliveryEach detected change is written to Intercom through its API, with automatic retries and rate-limit backoff.

Intercom HubSpot Sub-second propagation

DetectionIntercom notifies Stacksync of record changes through webhook events. Webhook topic subscriptions for contact, company, and conversation events, plus polling for backfill.

DeliveryEach detected change is written to HubSpot through its API, with automatic retries and rate-limit backoff.

Rate-limit considerations

  • HubSpot: Request limits vary by subscription tier and API type.
  • Intercom: Subject to per-app rate limits on the Intercom API.
What ships with HubSpot ⇄ Intercom

Connect HubSpot and Intercom for flexible, real-time data sync.

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

Real-time

Two-way sync

Changes in HubSpot or Intercom instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever HubSpot or Intercom 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 HubSpot or Intercom record.

Observability

Monitoring

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

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions between HubSpot and Intercom.

How the HubSpot and Intercom connectors work

HubSpot

Integration surface
REST API (CRM v3)
Authentication
OAuth (choose HubSpot account and authorize Stacksync); requires a HubSpot 'Super Admin' to grant access; optional "Grant access to sensitive fields" checkbox for sensitive/highly sensitive fields
Change detection
Records: incremental near-real-time change tracking. Associations: HubSpot has no native association CDC
Capabilities
read · write · CDC · webhooks
Rate limits
Request limits vary by subscription tier and API type.
HubSpot setup guide

Intercom

Integration surface
REST API
Authentication
OAuth 2.0 for public apps or a workspace access token
Change detection
Webhook topic subscriptions for contact, company, and conversation events, plus polling for backfill
Capabilities
read · write · webhooks
Rate limits
Subject to per-app rate limits on the Intercom API
How it works

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

    Choose tables

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

HubSpot and Intercom integration FAQ

SECURITY

Security teams trust 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
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 543 integrations available for HubSpot and Intercom.

Popular · 6 of 543
All HubSpot integrations All Intercom integrations Browse all integrations
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