Two-way sync
Changes in Notion or Seismic instantly reflect in both systems. No stale data, no manual imports.
Keep Notion 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.
The CRM is supposed to be the record of every customer relationship, but customer-relevant information also accumulates in the other tools a team runs. Whatever Notion holds or produces that touches a customer, whether conversations, payments, replies, enriched data, or notes, the CRM only benefits if it arrives without someone copying it over.
Stacksync connects Comments, Files and attachments, Pages, Databases / Data sources in Notion to Users, User Groups, Teamsites, LiveSend Links in Seismic with bi-directional, real-time sync. Activity and record changes in Notion update the matching contact or account in Seismic, and CRM data flows the other way wherever Notion can store and use it.
Owner, lifecycle stage, or account details from Seismic sync into Notion, so people working there have the context without switching tools.
Enriched fields land directly on records in Seismic, and refreshes keep them from going stale.
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.
| Notion objects | Seismic objects | How this pairing syncs | |
|---|---|---|---|
| Users Workspace members and bots referenced by people properties; read-only — users cannot be created or invited through the API. | 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. | |
| Files and attachments File-property and file-block values. Notion-hosted URLs are temporary and expire, so files are re-fetched or copied at sync time. | Teamsites Tenant-scoped workspace partitions organizing Library content, permissions, and config; scoped by teamSiteId on most content calls. | Files and attachments is specific to Notion and Teamsites to Seismic — each maps to any object or custom field on the other side. | |
| Pages The core content unit and also every row of a database; synced two-way as records, with typed properties mapping to table columns. | LiveSend Links Trackable content-share links created via the engagement API; their open and view engagement is read back through Reporting. | Pages is specific to Notion and LiveSend Links to Seismic — each maps to any object or custom field on the other side. | |
| Databases / Data sources Collections of pages with a typed property schema. Since the 2025-09-03 API a database is a container holding one or more data sources; syncs target a specific data_source_id. | Digital Sales Rooms Buyer-facing microsites (DSRs); lifecycle and content-change events surface via webhooks, currently marked Early Access. | Databases / Data sources is specific to Notion and Digital Sales Rooms to Seismic — each maps to any object or custom field on the other side. | |
| Properties Typed columns on a page — title, rich_text, number, select, multi_select, date, people, relation, status, checkbox, URL. Read and written both ways. | Reporting Activities Content-interaction, engagement, and usage analytics extracted read-only through the ETL-oriented Reporting API v2 for a warehouse. | Properties is specific to Notion and Reporting Activities to Seismic — each maps to any object or custom field on the other side. | |
| Blocks The page body — paragraphs, headings, to-dos, tables — nested as children and fetched recursively, separate from a page's properties. | Library Content Documents, decks, and assets stored in teamsites; created, moved, and retrieved via the Content Management API, each with a contentId. | Blocks is specific to Notion and Library Content 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.
DetectionNotion notifies Stacksync of record changes through webhook events. Workspace webhooks (page.created, page.content_updated, data_source.schema_updated, comment.created.
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 Notion through its API, with automatic retries and rate-limit backoff.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Notion–Seismic connection.
Changes in Notion or Seismic instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Notion 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 Notion or Seismic record.
Track your Notion ⇄ Seismic sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Notion 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 Notion 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 Notion 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 Notion and Seismic: authenticate both systems, choose the objects to sync (such as Notion's Users and Files and attachments), map fields visually, and changes propagate both ways in milliseconds — no code required.
Change detection on Notion: Workspace webhooks (page.created, page.content_updated, data_source.schema_updated, comment.created; HMAC-SHA256 signed) plus polling on each page's last_edited_time. 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 Notion side: Comments, Files and attachments, Pages, Databases / Data sources, plus custom fields where Notion exposes them. On the Seismic side: Users, User Groups, Teamsites, LiveSend Links. Stacksync auto-detects both schemas and converts types between the two systems.
Yes. Each object mapping can be bidirectional or restricted to a single direction (both systems accept writes). Read-only mirrors, one-way pushes, and full two-way sync can be mixed in the same integration.
Common patterns for Notion and Seismic: Where Notion can store CRM context: fields kept current; Where Notion supplies contact or company data. Owner, lifecycle stage, or account details from Seismic sync into Notion, so people working there have the context without switching tools.
Notion: REST API (api.notion.com/v1). Authentication: OAuth 2.0 for public integrations, or an internal integration secret (bearer token); every request must send a Notion-Version header. 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.
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 534 integrations available for Notion and Seismic.