Real-time
Two-way sync
Changes in Close or Seismic instantly reflect in both systems. No stale data, no manual imports.
CRM
Close to Seismic integration — real-time, two-way sync
Keep Close 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.
- 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
Case study
Migrated from MuleSoft
Case study
Migrated from Celigo
Migrated from Heroku Connect
Migrated from Matillion
Case study
Migrated from Fivetran
Case study
Migrated from Celigo
Why teams connect Close and Seismic
Run Close and Seismic 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 Activities, Tasks, Custom Activities, Custom Fields in Close with Digital Sales Rooms, Reporting Activities, Library Content, Content Versions 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.
Common use cases
- 01 Two-way sync between Close and a billing or ERP system so closed-won opportunities create customers and invoices automatically.
- 02 Keep Close contacts aligned with a marketing automation platform so outreach lists stay current.
- 03 Extract content-interaction and LiveSend engagement from the Reporting API v2 into a warehouse to tie asset views to CRM Opportunities.
- 04 Sync Library Content metadata and Custom Property Schemas with a DAM or PIM so one taxonomy governs assets across systems.
Common sync patterns
Where both track pipeline: deal visibility across systems
Deal stage and value on shared accounts stay visible from either CRM.
Post-acquisition consolidation
Keep both CRMs accurate while the merged team decides on a target system, instead of freezing one and losing months of updates.
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.
What you can sync between Close and Seismic
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.
| Close objects | Seismic objects | How this pairing syncs | |
|---|---|---|---|
| Users Sales reps referenced as owners on leads, opportunities, and activities. | 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. | |
| Smart Views Saved lead searches that can scope which records a segment-based sync pulls. | Content Versions Version history for a library item; new versions upload via API and old ones expire, with events firing on ContentManager webhooks. | Smart Views is specific to Close and Content Versions to Seismic — each maps to any object or custom field on the other side. | |
| Leads The top-level record in Close; represents a company and holds its contacts, opportunities, and activity history. | User Groups Group definitions and membership that govern content access; synced from an IdP or HRIS to keep permissions current. | Leads is specific to Close and User Groups to Seismic — each maps to any object or custom field on the other side. | |
| Contacts People nested under a lead, with emails and phone numbers used for outreach syncs. | Teamsites Tenant-scoped workspace partitions organizing Library content, permissions, and config; scoped by teamSiteId on most content calls. | Contacts is specific to Close and Teamsites to Seismic — each maps to any object or custom field on the other side. | |
| Opportunities Deal records with value, confidence, and status; commonly synced to reporting and billing systems. | LiveSend Links Trackable content-share links created via the engagement API; their open and view engagement is read back through Reporting. | Opportunities is specific to Close and LiveSend Links to Seismic — each maps to any object or custom field on the other side. | |
| Activities Calls, emails, SMS, notes, and meetings logged against a lead; the source for engagement analytics. | Digital Sales Rooms Buyer-facing microsites (DSRs); lifecycle and content-change events surface via webhooks, currently marked Early Access. | Activities is specific to Close and Digital Sales Rooms to Seismic — each maps to any object or custom field on the other side. |
How changes propagate between Close and Seismic
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.
Close Seismic Sub-second propagation
DetectionClose notifies Stacksync of record changes through webhook events. Webhook subscriptions for record events, with polling on date_updated fields for backfills.
DeliveryEach detected change is written to Seismic through its API, with automatic retries and rate-limit backoff.
Seismic Close Sub-second propagation
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 Close through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Close: Subject to per-endpoint rate limits communicated in response headers.
- Seismic: Tiered per-endpoint limits over a rolling 60-second window; exceeding returns HTTP 429, with X-Seismic-Remaining-Calls and X-Seismic-Total-Calls headers.
What ships with Close ⇄ Seismic
Connect Close and Seismic for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Close–Seismic connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Close or Seismic 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 Close or Seismic record.
Observability
Monitoring
Track your Close ⇄ Seismic sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Close and Seismic.
How the Close and Seismic connectors work
Close
- Integration surface
- REST API
- Authentication
- API key (sent via HTTP Basic auth)
- Change detection
- Webhook subscriptions for record events, with polling on date_updated fields for backfills
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to per-endpoint rate limits communicated in response headers
Seismic
- Integration surface
- 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
- Change detection
- 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)
- Capabilities
- read · write · webhooks
- Rate limits
- Tiered per-endpoint limits over a rolling 60-second window; exceeding returns HTTP 429, with X-Seismic-Remaining-Calls and X-Seismic-Total-Calls headers
How it works
How to connect Close to Seismic — 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 Close 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.
Close
connected
Seismic
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Close 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.
objects · Close ⇄ SeismicCustomers 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.
Close SeismicCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Close and Seismic integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Close and Seismic: authenticate both systems, choose the objects to sync (such as Close's Users and Smart Views), map fields visually, and changes propagate both ways in milliseconds — no code required.
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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 Close and Seismic 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 Close and Seismic connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Close–Seismic integration in-house.
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Yes — Stacksync ships production-grade connectors for both Close and Seismic. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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Change detection on Close: Webhook subscriptions for record events, with polling on date_updated fields for backfills. 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.
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On the Close side: Activities, Tasks, Custom Activities, Custom Fields, plus custom fields where Close exposes them. On the Seismic side: Digital Sales Rooms, Reporting Activities, Library Content, Content Versions. Stacksync auto-detects both schemas and converts types between the two systems.
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.
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:
Related integrations
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