Real-time
Two-way sync
Changes in Cin7 or Easypost instantly reflect in both systems. No stale data, no manual imports.
ERP ⇄ E-commerce
Cin7 to Easypost integration — real-time, two-way sync
Keep Cin7 and Easypost 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
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Migrated from MuleSoft
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Migrated from Celigo
Why teams connect Cin7 and Easypost
Keep the storefront in step with the back office: Easypost and Cin7 share products, inventory, and orders in real time, in both directions.
Easypost runs the storefront and takes the orders; Cin7 owns the item master, the stock on hand, and the finance behind every transaction. The two overlap wherever the same products, customers, and sales matter to both — and when re-keying or an overnight batch is what connects them, the store oversells items it can't ship, quotes prices finance never set, or leaves buyers waiting on status that already changed.
Stacksync syncs Rate, Tracker, Batch, CarrierAccount in Easypost with Purchase orders, Contacts, Branches / locations, Stock adjustments and transfers in Cin7 field by field, in real time, and in both directions. You decide which system owns which fields — stock and pricing from Cin7, order and customer detail from Easypost — and Stacksync keeps every copy consistent and resolves conflicts by rules you set.
Common use cases
- 01 Sync CarrierAccount configuration and negotiated rates so shipping options stay consistent across the storefront, ERP, and 3PL systems.
- 02 Pull Shipment, Rate, and Refund records into a warehouse to report shipping cost per carrier and service and reclaim postage on labels that were never scanned.
- 03 Keep customer records aligned between Cin7 and the CRM to remove duplicate account entry.
- 04 Write purchase orders created in a planning tool back into Cin7 for receiving.
Common sync patterns
Where Cin7 is the inventory system of record: stock stays accurate
Available quantities from Cin7 publish to Easypost, so the store shows what can actually ship and stops overselling.
New orders reach the back office
An order captured in Easypost creates the matching record in Cin7 with customer, line items, and totals, so fulfillment and invoicing start without re-entry.
One product catalog
Where both systems keep item records, SKUs, descriptions, and attributes stay aligned so the store and the back office describe the same product.
What you can sync between Cin7 and Easypost
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 | Easypost objects | How this pairing syncs | |
|---|---|---|---|
| Sales orders Orders captured from all channels; the main object for fulfillment and revenue syncs. | Address Origin and destination locations; create, retrieve, and list, plus address verification (delivery and residential) to normalize and validate addresses before they are saved downstream. | Sales orders is specific to Cin7 and Address to Easypost — each maps to any object or custom field on the other side. | |
| Purchase orders Supplier orders synced with procurement and accounting workflows. | Parcel Package dimensions and weight (or a predefined_package); created standalone or inline on a Shipment and reused across shipments and batches. | Purchase orders is specific to Cin7 and Parcel to Easypost — each maps to any object or custom field on the other side. | |
| Contacts Customers and suppliers, matched to CRM records to keep account data consistent. | Rate Carrier service and price options EasyPost generates on a Shipment; read-only - you select a rate id and buy it, you do not create or edit rates directly. | Contacts is specific to Cin7 and Rate to Easypost — each maps to any object or custom field on the other side. | |
| Branches / locations Warehouse entities that scope every stock movement and order allocation. | Tracker Tracking for a shipment by tracking_code and carrier; create a Tracker to begin tracking, read status and tracking_details, and receive tracker.updated events via webhook as the parcel moves. | Branches / locations is specific to Cin7 and Tracker to Easypost — each maps to any object or custom field on the other side. | |
| Stock adjustments and transfers Inventory movements read for audit and reconciliation reporting. | Batch Bulk shipment processing; create a batch, add or remove shipments, buy all labels at once, and generate a consolidated label or ScanForm for the day's orders. | Stock adjustments and transfers is specific to Cin7 and Batch to Easypost — each maps to any object or custom field on the other side. | |
| Credit notes / returns Return documents synced so finance and support see the same refund state. | CarrierAccount Carrier credentials and settings that control which carriers and negotiated rates are available; create, update, and delete to manage enabled carriers across accounts. | Credit notes / returns is specific to Cin7 and CarrierAccount to Easypost — each maps to any object or custom field on the other side. |
How changes propagate between Cin7 and Easypost
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 Easypost Sub-second propagation
DetectionCin7 notifies Stacksync of record changes through webhook events. Polling on modified-date filters.
DeliveryEach detected change is written to Easypost through its API, with automatic retries and rate-limit backoff.
Easypost Cin7 Sub-second propagation
DetectionEasypost notifies Stacksync of record changes through webhook events. Webhooks deliver an Event via HTTP POST on object changes (e.g.
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.
- Easypost: Fixed 5 requests/second on index (list) endpoints plus a dynamic load-based limiter protecting buy and rate operations; exceeding either returns HTTP 429 Too Many Requests.
What ships with Cin7 ⇄ Easypost
Connect Cin7 and Easypost for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Cin7–Easypost connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Cin7 or Easypost 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 Easypost record.
Observability
Monitoring
Track your Cin7 ⇄ Easypost 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 Easypost.
How the Cin7 and Easypost 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
Easypost
- Integration surface
- REST API (EasyPost API v2, https://api.easypost.com/v2)
- Authentication
- HTTP Basic auth with the API key as the username and an empty password (Bearer token also accepted); separate Test and Production keys
- Change detection
- Webhooks deliver an Event via HTTP POST on object changes (e.g. tracker.updated); historical pulls via list/index endpoints using before_id/after_id cursor pagination
- Capabilities
- read · write · webhooks
- Rate limits
- Fixed 5 requests/second on index (list) endpoints plus a dynamic load-based limiter protecting buy and rate operations; exceeding either returns HTTP 429 Too Many Requests
How it works
How to connect Cin7 to Easypost — 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 Easypost 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
Easypost
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Cin7 and Easypost 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 ⇄ EasypostCustomers 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 EasypostCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Cin7 and Easypost integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Cin7 and Easypost: authenticate both systems, choose the objects to sync (such as Cin7's Sales orders and Purchase orders), map fields visually, and changes propagate both ways in milliseconds — no code required.
-
On the Easypost side: Rate, Tracker, Batch, CarrierAccount, plus custom fields where Easypost exposes them. On the Cin7 side: Purchase orders, Contacts, Branches / locations, Stock adjustments and transfers. 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 Cin7 and Easypost: Where Cin7 is the inventory system of record: stock stays accurate; New orders reach the back office; One product catalog. Available quantities from Cin7 publish to Easypost, so the store shows what can actually ship and stops overselling.
-
Cin7: 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). Easypost: REST API (EasyPost API v2, https://api.easypost.com/v2). Authentication: HTTP Basic auth with the API key as the username and an empty password (Bearer token also accepted); separate Test and Production keys. Stacksync manages authentication, retries, and rate limits on both sides.
-
Easypost: EasyPost enforces a fixed 5 requests-per-second limit on index (list) endpoints plus a dynamic load-based limiter that protects high-priority buy and rate calls; exceeding either returns HTTP 429 Too Many Requests, so backfills must pace and back off. Cin7: Cin7 is two distinct products under one brand: Cin7 Omni and Cin7 Core (the former DEAR Systems), each with its own API, credentials, and object shapes, so a connector must target the right one. Stacksync's field mapping accounts for these differences between Cin7 and Easypost without custom code.
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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