Real-time
Two-way sync
Changes in Cin7 or Resend instantly reflect in both systems. No stale data, no manual imports.
ERP ⇄ Business productivity
Cin7 to Resend integration — real-time, two-way sync
Keep Cin7 and Resend 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 Cin7 and Resend
Bridge the tools people work in and the system the business runs on: real-time, two-way sync between Resend and Cin7.
The ERP holds the records the business is run on, and it is rarely where day-to-day work happens. Resend is closer to the work, and the two often need the same facts about the same people, organizations, and transactions. Bridging them by hand, or by nightly file transfer, leaves each side out of date for hours at a time.
Stacksync syncs Contacts, Audiences, Broadcasts, Domains in Resend with Contacts, Branches / locations, Stock adjustments and transfers, Credit notes / returns in Cin7 bi-directionally and in real time, with field-level mapping and rules for which system wins on conflict. Changes made where the work happens reach the system of record within seconds, and the reverse.
Common use cases
- 01 Write delivery, bounce, and complaint events back to the CRM or a Postgres table for deliverability reporting.
- 02 Trigger transactional sends when a row changes in an operational database, such as an order status update.
- 03 Write purchase orders created in a planning tool back into Cin7 for receiving.
- 04 Consolidate stock movements from multiple branches into one reporting database.
Common sync patterns
Where Cin7 is the HR or people system of record
Worker and organization data from Cin7 stays current in Resend, so the tools people use daily reflect the org as it actually is.
Master data corrections travel
A customer, supplier, or contact detail corrected in either system updates the other, ending duplicate maintenance.
Where Resend faces customers and Cin7 carries account records
Order, invoice, or account status from Cin7 appears alongside the customer in Resend, so front-line teams answer from live data.
What you can sync between Cin7 and Resend
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.
| Cin7 objects | Resend objects | How this pairing syncs | |
|---|---|---|---|
| Contacts Customers and suppliers, matched to CRM records to keep account data consistent. | Contacts Recipient records with email, name, and subscription state, synced from CRMs or databases. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. Custom fields on either side are included in the mapping. | |
| Inventory levels Stock on hand by branch or location, published outward for availability. | API keys Scoped credentials managed per environment for send and read access. | Inventory levels is specific to Cin7 and API keys to Resend — each maps to any object or custom field on the other side. | |
| Sales orders Orders captured from all channels; the main object for fulfillment and revenue syncs. | Emails Sent messages retrievable by ID with current delivery status. | Sales orders is specific to Cin7 and Emails to Resend — each maps to any object or custom field on the other side. | |
| Purchase orders Supplier orders synced with procurement and accounting workflows. | Audiences Named contact lists that broadcasts target; typically mirrored from CRM segments. | Purchase orders is specific to Cin7 and Audiences to Resend — each maps to any object or custom field on the other side. | |
| Branches / locations Warehouse entities that scope every stock movement and order allocation. | Broadcasts One-to-many campaign sends addressed to an audience. | Branches / locations is specific to Cin7 and Broadcasts to Resend — each maps to any object or custom field on the other side. | |
| Stock adjustments and transfers Inventory movements read for audit and reconciliation reporting. | Domains Verified sending domains with DNS and DKIM status. | Stock adjustments and transfers is specific to Cin7 and Domains to Resend — each maps to any object or custom field on the other side. |
How changes propagate between Cin7 and Resend
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.
Cin7 Resend Sub-second propagation
DetectionCin7 notifies Stacksync of record changes through webhook events. Polling on modified-date filters.
DeliveryEach detected change is written to Resend through its API, with automatic retries and rate-limit backoff.
Resend Cin7 Sub-second propagation
DetectionResend notifies Stacksync of record changes through webhook events. Webhooks for email lifecycle events.
DeliveryEach detected change is written to Cin7 through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Cin7: Subject to per-account API rate limits that differ between Cin7 Omni and Cin7 Core.
What ships with Cin7 ⇄ Resend
Connect Cin7 and Resend for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Cin7–Resend connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Cin7 or Resend 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 Cin7 or Resend record.
Observability
Monitoring
Track your Cin7 ⇄ Resend sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Cin7 and Resend.
How the Cin7 and Resend connectors work
Cin7
- Integration surface
- REST API; note that Cin7 Omni and Cin7 Core (formerly DEAR Systems) are separate products with separate APIs
- Authentication
- API key credentials (paired with a username or account ID, depending on the product)
- Change detection
- Polling on modified-date filters; webhook support exists on some editions for order and stock events
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to per-account API rate limits that differ between Cin7 Omni and Cin7 Core
Resend
- Integration surface
- REST API
- Authentication
- API key (Bearer token)
- Change detection
- Webhooks for email lifecycle events; polling for contact and audience state
- Capabilities
- read · write · webhooks
How it works
How to connect Cin7 to Resend — 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 Cin7 and Resend with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Cin7
connected
Resend
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Cin7 and Resend 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 · Cin7 ⇄ ResendCustomers 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.
Cin7 ResendCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Cin7 and Resend integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Cin7 and Resend: authenticate both systems, choose the objects to sync (such as Cin7's Contacts and Inventory levels), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Resend: Webhook payloads cover the full email lifecycle (sent, delivered, bounced, complained, opened, clicked) and are signed for verification. Cin7: Order objects carry channel context (POS, B2B, e-commerce), which downstream reporting syncs typically preserve for channel-level margin analysis. Stacksync's field mapping accounts for these differences between Cin7 and Resend 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 Cin7 and Resend 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 Cin7 and Resend connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Cin7–Resend integration in-house.
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Yes — Stacksync ships production-grade connectors for both Cin7 and Resend. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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Change detection on Cin7: Polling on modified-date filters; webhook support exists on some editions for order and stock events. On Resend: Webhooks for email lifecycle events; polling for contact and audience state. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
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
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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