Two-way sync
Changes in Notion or Smartsheet instantly reflect in both systems. No stale data, no manual imports.
Keep Notion and Smartsheet 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 tools in the daily stack often hold overlapping information: the same people, the same companies, or the same pieces of work, described twice. The tools do different jobs, so consolidating is not the answer; the overlap just needs to stop drifting.
Stacksync syncs Databases / Data sources, Properties, Blocks, Formula and Rollup properties in Notion with Rows, Columns, Cells, Reports in Smartsheet in real time. You choose which records overlap, map the fields that should match, and pick a direction or let changes flow both ways. From then on, an update made in either tool is reflected in the other within seconds, without exports or copy-paste.
Because the sync is field-level, each tool keeps its own extras; only the shared data is held in agreement.
Contact and company details corrected in either tool update the other, so nobody works from the old version.
Payments, replies, messages, or tickets created in one tool can create or update matching records in the other, keeping context in one place.
Information that originates in Notion stays current in Smartsheet instead of going stale after a one-time paste.
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 | Smartsheet objects | How this pairing syncs | |
|---|---|---|---|
| Properties Typed columns on a page — title, rich_text, number, select, multi_select, date, people, relation, status, checkbox, URL. Read and written both ways. | Rows Records inside a sheet, each with createdAt/modifiedAt and cells keyed by columnId; the primary unit synced to and from external tables. | Properties is specific to Notion and Rows to Smartsheet — 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. | Columns Define sheet schema and cell type (TEXT_NUMBER, DATE, CONTACT_LIST, PICKLIST, CHECKBOX); read via the API so field mappings can be generated. | Blocks is specific to Notion and Columns to Smartsheet — each maps to any object or custom field on the other side. | |
| Formula and Rollup properties Values computed by Notion from other fields; read-only, so they are pulled out for reporting but never written back. | Cells Row-by-column values; writes must match the column type and no single cell can exceed 4,000 characters. | Formula and Rollup properties is specific to Notion and Cells to Smartsheet — each maps to any object or custom field on the other side. | |
| Users Workspace members and bots referenced by people properties; read-only — users cannot be created or invited through the API. | Reports Read-only roll-ups spanning multiple sheets; pulled into a warehouse for cross-sheet reporting, capped at 50,000 rows. | Users is specific to Notion and Reports to Smartsheet — each maps to any object or custom field on the other side. | |
| Comments Page and inline discussion threads; can be read and created, useful for surfacing Notion activity in another system. | Attachments Files linked to rows or sheets; posting one carries a 10x rate cost, so bulk file sync is throttled to 30 per minute. | Comments is specific to Notion and Attachments to Smartsheet — each maps to any object or custom field on the other side. | |
| 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. | Discussions and Comments Threaded comments on rows and sheets; read out to sync collaboration history or activity into another system. | Files and attachments is specific to Notion and Discussions and Comments to Smartsheet — 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 Smartsheet through its API, with automatic retries and rate-limit backoff.
DetectionSmartsheet notifies Stacksync of record changes through webhook events. Sheet-scoped webhooks subscribed to *.* events notify on row and cell changes.
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–Smartsheet connection.
Changes in Notion or Smartsheet instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Notion or Smartsheet 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 Smartsheet record.
Track your Notion ⇄ Smartsheet sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Notion and Smartsheet.
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 Smartsheet 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 Smartsheet 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 Smartsheet: authenticate both systems, choose the objects to sync (such as Notion's Properties and Blocks), 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 Smartsheet: Sheet-scoped webhooks subscribed to *.* events notify on row and cell changes; otherwise polling on sheet and row modifiedAt timestamps. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
On the Notion side: Databases / Data sources, Properties, Blocks, Formula and Rollup properties, plus custom fields where Notion exposes them. On the Smartsheet side: Rows, Columns, Cells, Reports. 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 Smartsheet: Where both tools track people or companies: one consistent record; Where one tool produces events: mirror them in the other; Where Smartsheet is where the team documents or plans: keep its data fed. Contact and company details corrected in either tool update the other, so nobody works from the old version.
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. Smartsheet: REST API (v2.0). Authentication: OAuth 2.0 authorization-code flow, or a raw/personal API access token passed as a Bearer header. 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 516 integrations available for Notion and Smartsheet.