Two-way sync
Changes in Kustomer or Seismic instantly reflect in both systems. No stale data, no manual imports.
Keep Kustomer 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 Users, Teams, Tags, Notes in Kustomer with User Groups, Teamsites, LiveSend Links, Digital Sales Rooms 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.
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.
Deal stage and value on shared accounts stay visible from either CRM.
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.
| Kustomer objects | Seismic objects | How this pairing syncs | |
|---|---|---|---|
| Users Agent records map conversation ownership to people in other systems. | Users User records managed through SCIM 2.0 and legacy user endpoints; created, updated, and deactivated for provisioning sync. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Tags Labels on conversations and customers sync for categorization and analytics. | Content Versions Version history for a library item; new versions upload via API and old ones expire, with events firing on ContentManager webhooks. | Tags is specific to Kustomer and Content Versions to Seismic — each maps to any object or custom field on the other side. | |
| Notes Internal annotations carry context alongside synced conversations. | User Groups Group definitions and membership that govern content access; synced from an IdP or HRIS to keep permissions current. | Notes is specific to Kustomer and User Groups to Seismic — each maps to any object or custom field on the other side. | |
| Customers The central record whose timeline aggregates every interaction; external attributes sync onto it. | Teamsites Tenant-scoped workspace partitions organizing Library content, permissions, and config; scoped by teamSiteId on most content calls. | Customers is specific to Kustomer and Teamsites to Seismic — each maps to any object or custom field on the other side. | |
| Conversations Support threads across channels sync outward for analytics and CRM context. | LiveSend Links Trackable content-share links created via the engagement API; their open and view engagement is read back through Reporting. | Conversations is specific to Kustomer and LiveSend Links to Seismic — each maps to any object or custom field on the other side. | |
| Messages Individual messages within conversations support full-thread replication. | Digital Sales Rooms Buyer-facing microsites (DSRs); lifecycle and content-change events surface via webhooks, currently marked Early Access. | Messages is specific to Kustomer and Digital Sales Rooms 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.
DetectionKustomer notifies Stacksync of record changes through webhook events. Outbound webhooks on record 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 Kustomer through its API, with automatic retries and rate-limit backoff.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Kustomer–Seismic connection.
Changes in Kustomer or Seismic instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Kustomer 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 Kustomer or Seismic record.
Track your Kustomer ⇄ Seismic sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Kustomer 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 Kustomer 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 Kustomer 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 Kustomer and Seismic: authenticate both systems, choose the objects to sync (such as Kustomer's Users and Tags), map fields visually, and changes propagate both ways in milliseconds — no code required.
Common patterns for Kustomer and Seismic: Migration with a parallel run; Divisional or regional split; Where both track pipeline: deal visibility across systems. When one CRM is replacing the other, run both fully live until cutover, with no snapshot gap and no data freeze.
Kustomer: REST API. Authentication: API key used as a bearer token, scoped by role. Seismic: REST Integration APIs and Reporting API v2. Authentication: OAuth 2.0 / OpenID Connect; Bearer token in the Authorization header, via Authorization Code (user context) or client-credentials app-only flows. Stacksync manages authentication, retries, and rate limits on both sides.
Kustomer: Kustomer's data model centers on a customer timeline: conversations, messages, and custom object records all appear chronologically against one customer record rather than as separate tickets. Seismic: Some webhook domains such as LiveSend and DSR content changes are marked Early Access and may change. Stacksync's field mapping accounts for these differences between Kustomer and Seismic without custom code.
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 Kustomer and Seismic records are not retained after a sync operation.
Stacksync pricing is usage-based and starts at $1,000/month, including the managed Kustomer and Seismic connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Kustomer–Seismic integration in-house.
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 441 integrations available for Kustomer and Seismic.