Real-time
Two-way sync
Changes in Customer.io or Supabase instantly reflect in both systems. No stale data, no manual imports.
Business productivity ⇄ Database
Customer.io to Supabase integration — real-time, two-way sync
Keep Customer.io 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
- 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 Customer.io and Supabase
Mirror Customer.io'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 Customer.io 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 Broadcasts, Deliveries / Messages, Newsletters, People from Customer.io into Storage Object Metadata, Tables, Views, Schemas 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 Customer.io, so the tool and the database never disagree.
Common use cases
- Land delivery and engagement events (sent, opened, clicked, bounced) from reporting webhooks into a warehouse for attribution analysis.
- Keep unsubscribe and subscription-preference state consistent between Customer.io and the CRM to avoid compliance gaps.
- Mirror billing and subscription records into Supabase tables the application can join directly
- Reflect auth.users state into support and CRM systems so teams see account status without querying the database
One integration pattern for the whole stack
Every synced tool looks the same from the database, so each new integration is configuration, not a new codebase.
Read Customer.io with a query
Records from Customer.io are ordinary rows in Supabase; join them, index them, and use them in application logic without touching the vendor API.
Automate Customer.io from your codebase
Write to the synced tables in Supabase and Stacksync propagates the change into Customer.io, replacing custom integration code.
What you can sync between Customer.io 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.
| Customer.io objects | Supabase objects | |
|---|---|---|
| Broadcasts One-off sends to segments or audiences, triggerable via API. | Database Functions Postgres functions that can transform or validate synced rows. | |
| Deliveries / Messages Per-recipient message records whose lifecycle events flow out through reporting webhooks. | Storage Object Metadata File metadata rows that can be joined to synced application data. | |
| Newsletters Recurring email sends with performance metrics available for reporting syncs. | Tables Standard Postgres tables; the primary two-way sync target. | |
| People Profiles with attributes, matched on identifiers like id or email; the main write target of data syncs. | Views Read-side projections exposed to outbound syncs. | |
| Objects Non-person entities such as accounts or companies, related to people for account-level messaging. | Schemas Namespaces (public and custom) that scope sync access. | |
| Events Behavioral events sent via the Track API that trigger campaigns. | auth.users Managed authentication users, often mirrored into CRM or support systems. |
What ships with Customer.io ⇄ Supabase
Connect Customer.io and Supabase for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Customer.io–Supabase connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Customer.io 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 Customer.io or Supabase record.
Observability
Monitoring
Track your Customer.io ⇄ Supabase sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Customer.io and Supabase.
How the Customer.io and Supabase connectors work
Customer.io
- Integration surface
- REST APIs split by purpose: Track API for data ingestion, App API for campaigns, people lookups, and messages
- Authentication
- Basic auth with site ID and API key for the Track API; bearer token for the App API
- Change detection
- Reporting webhooks push message and delivery events; person attribute changes are not streamed and require source-side detection
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to per-API rate limits documented by Customer.io
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 Customer.io 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 Customer.io 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.
Customer.io
connected
Supabase
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Customer.io 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 · Customer.io ⇄ 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.
Customer.io SupabaseCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Customer.io and Supabase integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Customer.io and Supabase: authenticate both systems, choose the objects to sync (such as Customer.io's Broadcasts and Deliveries / Messages), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Common patterns for Customer.io and Supabase: One integration pattern for the whole stack; Read Customer.io with a query; Automate Customer.io from your codebase. Every synced tool looks the same from the database, so each new integration is configuration, not a new codebase.
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Customer.io: REST APIs split by purpose: Track API for data ingestion, App API for campaigns, people lookups, and messages. Authentication: Basic auth with site ID and API key for the Track API; bearer token for the App API. 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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Customer.io: Reporting webhooks emit granular message lifecycle events, which is the practical way to get engagement data out at scale. Supabase: PostgREST auto-generates a REST endpoint per table, with Row Level Security policies gating access at the row level. Stacksync's field mapping accounts for these differences between Customer.io 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 Customer.io 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 Customer.io and Supabase connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Customer.io–Supabase integration in-house.
SECURITY
Security teams love 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
Every pair below is a real-time, two-way sync. Search all 386 integrations available for Customer.io and Supabase.
Popular · 8 of 386
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Customer.io ⇄ MongoDB -
Customer.io ⇄ CockroachDB -
Customer.io ⇄ Google AlloyDB -
Customer.io ⇄ Dynamo DB -
Supabase ⇄ Campfire -
Supabase ⇄ Front -
Supabase ⇄ Amazon Seller Central -
Supabase ⇄ SendGrid
No integrations match .
