Real-time
Two-way sync
Changes in Smartsheet or Supabase instantly reflect in both systems. No stale data, no manual imports.
Business productivity ⇄ Database
Smartsheet to Supabase integration — real-time, two-way sync
Keep Smartsheet and Supabase 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
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Adopted by fast-scaling companies moving mission-critical data in real time
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Why teams connect Smartsheet and Supabase
Mirror Smartsheet's data into Supabase so your own code can read and write it like any other table, with changes flowing both ways in seconds.
Engineers integrate with tools like Smartsheet through APIs, which means auth, pagination, rate limits, webhooks, and retry logic, all maintained forever and all different for every tool. Meanwhile the data would be trivial to use if it simply lived in Supabase.
Stacksync mirrors Discussions and Comments, Users and Groups, Sheets, Rows from Smartsheet into Tables, Views, Schemas, auth.users in Supabase and keeps both sides in sync in real time. Your services query the database directly, and inserts or updates your code makes flow back into Smartsheet, so the tool and the database never disagree.
Common use cases
- 01 Mirror Users and Groups from an HR system or directory so sheet sharing and workspace access stay aligned with headcount changes.
- 02 Trigger downstream actions in an operational database when a Row's status Cell changes, using sheet webhooks for near-real-time updates.
- 03 Mirror billing and subscription records into Supabase tables the application can join directly
- 04 Reflect auth.users state into support and CRM systems so teams see account status without querying the database
Common sync patterns
Read Smartsheet with a query
Records from Smartsheet are ordinary rows in Supabase; join them, index them, and use them in application logic without touching the vendor API.
Automate Smartsheet from your codebase
Write to the synced tables in Supabase and Stacksync propagates the change into Smartsheet, replacing custom integration code.
React to changes as they happen
Updates in Smartsheet arrive as row changes in Supabase, so triggers, jobs, and services can respond in near real time.
What you can sync between Smartsheet and Supabase
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.
| Smartsheet objects | Supabase objects | How this pairing syncs | |
|---|---|---|---|
| Columns Define sheet schema and cell type (TEXT_NUMBER, DATE, CONTACT_LIST, PICKLIST, CHECKBOX); read via the API so field mappings can be generated. | Views Read-side projections exposed to outbound syncs. | Columns is specific to Smartsheet and Views to Supabase — each maps to any object or custom field on the other side. | |
| Cells Row-by-column values; writes must match the column type and no single cell can exceed 4,000 characters. | Schemas Namespaces (public and custom) that scope sync access. | Cells is specific to Smartsheet and Schemas to Supabase — each maps to any object or custom field on the other side. | |
| Reports Read-only roll-ups spanning multiple sheets; pulled into a warehouse for cross-sheet reporting, capped at 50,000 rows. | auth.users Managed authentication users, often mirrored into CRM or support systems. | Reports is specific to Smartsheet and auth.users to Supabase — each maps to any object or custom field on the other side. | |
| Attachments Files linked to rows or sheets; posting one carries a 10x rate cost, so bulk file sync is throttled to 30 per minute. | Row Level Security Policies Row-level access rules that govern what the REST layer exposes. | Attachments is specific to Smartsheet and Row Level Security Policies to Supabase — each maps to any object or custom field on the other side. | |
| Discussions and Comments Threaded comments on rows and sheets; read out to sync collaboration history or activity into another system. | JSONB Columns Semi-structured payloads such as event properties or nested objects. | Discussions and Comments is specific to Smartsheet and JSONB Columns to Supabase — each maps to any object or custom field on the other side. | |
| Users and Groups Account membership and sharing; synced to keep an HR or identity source aligned with sheet and workspace access. | Database Functions Postgres functions that can transform or validate synced rows. | Users and Groups is specific to Smartsheet and Database Functions to Supabase — each maps to any object or custom field on the other side. |
How changes propagate between Smartsheet and Supabase
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.
Smartsheet Supabase Sub-second propagation
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 applied to Supabase as a row-level write, with types converted between the two schemas.
Supabase Smartsheet Sub-second propagation
DetectionSupabase pushes changes as they happen — webhook events backed by change data capture. Log-based CDC via Postgres logical replication, the same WAL feed that powers Supabase Realtime.
DeliveryEach detected change is written to Smartsheet through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Smartsheet: 300 requests per minute per access token; heavy calls like posting attachments cost 10x (30/min). A 429 returns errorCode 4003, back off ~60s.
- Supabase: SQL access is bounded by connection limits (pooled connections are provided); the REST layer is subject to the platform's limits.
What ships with Smartsheet ⇄ Supabase
Connect Smartsheet and Supabase for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Smartsheet–Supabase connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Smartsheet or Supabase 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 Smartsheet or Supabase record.
Observability
Monitoring
Track your Smartsheet ⇄ Supabase sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Smartsheet and Supabase.
How the Smartsheet and Supabase connectors work
Smartsheet
- Integration surface
- REST API (v2.0)
- Authentication
- OAuth 2.0 authorization-code flow, or a raw/personal API access token passed as a Bearer header
- Change detection
- Sheet-scoped webhooks subscribed to *.* events notify on row and cell changes; otherwise polling on sheet and row modifiedAt timestamps
- Capabilities
- read · write · webhooks
- Rate limits
- 300 requests per minute per access token; heavy calls like posting attachments cost 10x (30/min). A 429 returns errorCode 4003, back off ~60s.
Supabase
- Integration surface
- Direct PostgreSQL wire protocol connection, plus an auto-generated REST API (PostgREST)
- Authentication
- Database credentials (connection string) for SQL access; API keys (anon / service role) for the REST layer
- Change detection
- Log-based CDC via Postgres logical replication, the same WAL feed that powers Supabase Realtime; database webhooks can also fire on row changes
- Capabilities
- read · write · CDC · webhooks
- Rate limits
- SQL access is bounded by connection limits (pooled connections are provided); the REST layer is subject to the platform's limits
How it works
How to connect Smartsheet to Supabase — 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 Smartsheet and Supabase with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Smartsheet
connected
Supabase
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Smartsheet and Supabase 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 · Smartsheet ⇄ SupabaseCustomers 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.
Smartsheet SupabaseCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Smartsheet and Supabase integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Smartsheet and Supabase: authenticate both systems, choose the objects to sync (such as Smartsheet's Columns and Cells), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Smartsheet: REST API (v2.0). Authentication: OAuth 2.0 authorization-code flow, or a raw/personal API access token passed as a Bearer header. Supabase: Direct PostgreSQL wire protocol connection, plus an auto-generated REST API (PostgREST). Authentication: Database credentials (connection string) for SQL access; API keys (anon / service role) for the REST layer. Stacksync manages authentication, retries, and rate limits on both sides.
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Smartsheet: Sheet webhooks automatically disable when a sheet exceeds 20,000 rows, 400 columns, or 500,000 cells, so large sheets fall back to polling. Supabase: Every Supabase project is a full PostgreSQL database, so standard Postgres drivers, SQL tooling, and log-based CDC apply directly. Stacksync's field mapping accounts for these differences between Smartsheet and Supabase without custom code.
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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 Smartsheet and Supabase 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 Smartsheet and Supabase connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Smartsheet–Supabase integration in-house.
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Yes — Stacksync ships production-grade connectors for both Smartsheet and Supabase. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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:
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