Real-time
Two-way sync
Changes in Copper CRM or Customer.io instantly reflect in both systems. No stale data, no manual imports.
CRM ⇄ Business productivity
Copper CRM to Customer.io integration — real-time, two-way sync
Keep Copper CRM and Customer.io 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 Copper CRM and Customer.io
Sync what happens in Customer.io with the customer records in Copper CRM, in real time and in both directions.
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 Customer.io 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 Objects, Events, Segments, Campaigns in Customer.io to Companies, Leads, Opportunities, Activities in Copper CRM with bi-directional, real-time sync. Activity and record changes in Customer.io update the matching contact or account in Copper CRM, and CRM data flows the other way wherever Customer.io can store and use it.
Common use cases
- Keep unsubscribe and subscription-preference state consistent between Customer.io and the CRM to avoid compliance gaps.
- Sync account-level objects and their person relationships for B2B messaging keyed to company attributes.
- Mirror Copper data into Postgres so internal tools can query CRM state without extra API calls.
- Sync Copper people and opportunities into a warehouse for pipeline reporting beyond Copper's native dashboards.
Where Customer.io runs outreach
Prospects, sends, and replies sync into Copper CRM, keeping lead status current without manual imports.
Where Customer.io supplies contact or company data
Enriched fields land directly on records in Copper CRM, and refreshes keep them from going stale.
Where Customer.io processes payments
Charges, refunds, and subscription changes appear on the account in Copper CRM, so revenue context lives with the relationship.
What you can sync between Copper CRM and Customer.io
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.
| Copper CRM objects | Customer.io objects | |
|---|---|---|
| Pipelines Stage definitions that give opportunity records their stage context. | Broadcasts One-off sends to segments or audiences, triggerable via API. | |
| Custom Field Definitions Org-defined fields whose definitions are fetched to build dynamic field mappings. | Deliveries / Messages Per-recipient message records whose lifecycle events flow out through reporting webhooks. | |
| People Individual contact records, often created from Gmail interactions, and the main target of contact syncs. | Newsletters Recurring email sends with performance metrics available for reporting syncs. | |
| Companies Organization records linked to people and opportunities. | People Profiles with attributes, matched on identifiers like id or email; the main write target of data syncs. | |
| Leads Unqualified prospects kept separate from People until converted. | Objects Non-person entities such as accounts or companies, related to people for account-level messaging. | |
| Opportunities Deals tracked through pipelines and stages; synced for revenue reporting. | Events Behavioral events sent via the Track API that trigger campaigns. |
What ships with Copper CRM ⇄ Customer.io
Connect Copper CRM and Customer.io for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Copper CRM–Customer.io connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Copper CRM or Customer.io 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 Copper CRM or Customer.io record.
Observability
Monitoring
Track your Copper CRM ⇄ Customer.io sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Copper CRM and Customer.io.
How the Copper CRM and Customer.io connectors work
Copper CRM
- Integration surface
- REST API
- Authentication
- API key paired with the requesting user's email address, sent as request headers
- Change detection
- Webhook subscriptions for record create/update/delete events; polling as fallback
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to the platform's API rate limits
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
How it works
How to connect Copper CRM to Customer.io — 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 Copper CRM and Customer.io with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Copper CRM
connected
Customer.io
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Copper CRM and Customer.io 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 · Copper CRM ⇄ Customer.ioCustomers 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.
Copper CRM Customer.ioCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Copper CRM and Customer.io integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Copper CRM and Customer.io: authenticate both systems, choose the objects to sync (such as Copper CRM's Pipelines and Custom Field Definitions), map fields visually, and changes propagate both ways in milliseconds — no code required.
-
Copper CRM: REST API. Authentication: API key paired with the requesting user's email address, sent as request headers. 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. Stacksync manages authentication, retries, and rate limits on both sides.
-
Customer.io: Reporting webhooks emit granular message lifecycle events, which is the practical way to get engagement data out at scale. Copper CRM: API authentication uses an API key plus the user's email address in headers, so requests execute in the context of a specific Copper user. Stacksync's field mapping accounts for these differences between Copper CRM and Customer.io without custom code.
-
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 Copper CRM and Customer.io records are not retained after a sync operation.
-
Stacksync pricing is usage-based and starts at $1,000/month, including the managed Copper CRM and Customer.io connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Copper CRM–Customer.io integration in-house.
-
Yes — Stacksync ships production-grade connectors for both Copper CRM and Customer.io. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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 Copper CRM and Customer.io.
Popular · 8 of 386
-
Copper CRM ⇄ Microsoft 365 -
Copper CRM ⇄ Microsoft Dynamics 365 -
Copper CRM ⇄ Microsoft Teams -
Copper CRM ⇄ NextGen Healthcare -
Customer.io ⇄ Salesloft -
Customer.io ⇄ Salesmate -
Customer.io ⇄ SAP Sales Cloud -
Customer.io ⇄ Streak CRM
No integrations match .
