Two-way sync
Changes in Intercom or Seismic instantly reflect in both systems. No stale data, no manual imports.
Keep Intercom and Seismic in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
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 Contacts, Companies, Conversations, Tickets in Intercom with Library Content, Content Versions, Users, User Groups in Seismic 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.
Keep both CRMs accurate while the merged team decides on a target system, instead of freezing one and losing months of updates.
When one CRM is replacing the other, run both fully live until cutover, with no snapshot gap and no data freeze.
Where each CRM serves a different team or region, sync just the shared accounts and contacts so handoffs and cross-sell work.
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.
| Intercom objects | Seismic objects | How this pairing syncs | |
|---|---|---|---|
| Contacts A single contact model covers both users and leads, distinguished by a role attribute. | LiveSend Links Trackable content-share links created via the engagement API; their open and view engagement is read back through Reporting. | Contacts is specific to Intercom and LiveSend Links to Seismic — each maps to any object or custom field on the other side. | |
| Companies Company records group contacts and carry plan and account attributes used in segmentation. | Digital Sales Rooms Buyer-facing microsites (DSRs); lifecycle and content-change events surface via webhooks, currently marked Early Access. | Companies is specific to Intercom and Digital Sales Rooms to Seismic — each maps to any object or custom field on the other side. | |
| Conversations Support and sales threads sync outward for analytics and CRM context. | Reporting Activities Content-interaction, engagement, and usage analytics extracted read-only through the ETL-oriented Reporting API v2 for a warehouse. | Conversations is specific to Intercom and Reporting Activities to Seismic — each maps to any object or custom field on the other side. | |
| Tickets Structured ticket records track issues alongside conversational threads. | Library Content Documents, decks, and assets stored in teamsites; created, moved, and retrieved via the Content Management API, each with a contentId. | Tickets is specific to Intercom and Library Content to Seismic — each maps to any object or custom field on the other side. | |
| Data Events Behavioral events pushed in from product databases trigger messages and flows. | Content Versions Version history for a library item; new versions upload via API and old ones expire, with events firing on ContentManager webhooks. | Data Events is specific to Intercom and Content Versions to Seismic — each maps to any object or custom field on the other side. | |
| Custom Data Attributes Typed custom fields on contacts and companies hold synced billing and usage data. | Users User records managed through SCIM 2.0 and legacy user endpoints; created, updated, and deactivated for provisioning sync. | Custom Data Attributes is specific to Intercom and Users to Seismic — each maps to any object or custom field on the other side. |
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.
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 Seismic through its API, with automatic retries and rate-limit backoff.
DetectionSeismic notifies Stacksync of record changes through webhook events. Webhooks for content, version, user, group, workflow, DSR, and LiveSend events.
DeliveryEach detected change is written to Intercom through its API, with automatic retries and rate-limit backoff.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Intercom–Seismic connection.
Changes in Intercom or Seismic instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Intercom or Seismic data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
Handle millions of events per minute without losing a single Intercom or Seismic record.
Track your Intercom ⇄ Seismic sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Intercom and Seismic.
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.
Authenticate Intercom and Seismic with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Pick the Intercom and Seismic 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.
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Yes. Stacksync provides a managed, real-time two-way integration between Intercom and Seismic: authenticate both systems, choose the objects to sync (such as Intercom's Contacts and Companies), map fields visually, and changes propagate both ways in milliseconds — no code required.
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 Intercom and Seismic records are not retained after a sync operation.
Stacksync pricing is usage-based and starts at $1,000/month, including the managed Intercom and Seismic connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Intercom–Seismic integration in-house.
Yes — Stacksync ships production-grade connectors for both Intercom and Seismic. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
Change detection on Intercom: Webhook topic subscriptions for contact, company, and conversation events, plus polling for backfill. On Seismic: Webhooks for content, version, user, group, workflow, DSR, and LiveSend events; the Reporting API v2 is polled for batch historical extracts (ETL-oriented, not high-frequency). Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
On the Intercom side: Contacts, Companies, Conversations, Tickets, plus custom fields where Intercom exposes them. On the Seismic side: Library Content, Content Versions, Users, User Groups. Stacksync auto-detects both schemas and converts types between the two systems.
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.
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Securely connects to your systems with:
Every pair below is a real-time, two-way sync. Search all 536 integrations available for Intercom and Seismic.