Real-time
Two-way sync
Changes in Ironclad or Linnworks instantly reflect in both systems. No stale data, no manual imports.
Business productivity ⇄ ERP
Ironclad to Linnworks integration — real-time, two-way sync
Keep Ironclad and Linnworks in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
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Adopted by fast-scaling companies moving mission-critical data in real time
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Why teams connect Ironclad and Linnworks
Bridge the tools people work in and the system the business runs on: real-time, two-way sync between Ironclad and Linnworks.
The ERP holds the records the business is run on, and it is rarely where day-to-day work happens. Ironclad 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 Bridging them by hand, or by nightly file transfer, leaves each side out of date for hours at a time.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 Workflow Approvals, Signature Packets, Workflow Documents, Workflows in Ironclad with Locations, Purchase Orders, Suppliers, Channel Listings in Linnworks 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 Push Obligations and renewal dates from Ironclad into a finance or task system so post-signature commitments and renewals are tracked and actioned on time.
- 02 Pull executed contract PDFs from Records attachments into a document store or archive as each workflow completes.
- 03 Push customer and order data to a CRM or marketing platform for post-purchase campaigns
- 04 Sync orders from Linnworks into an ERP or accounting system as they are processed, without CSV exports
Common sync patterns
Where Linnworks is the HR or people system of record
Worker and organization data from Linnworks stays current in Ironclad, 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 Ironclad faces customers and Linnworks carries account records
Order, invoice, or account status from Linnworks appears alongside the customer in Ironclad, so front-line teams answer from live data.
What you can sync between Ironclad and Linnworks
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.
| Ironclad objects | Linnworks objects | How this pairing syncs | |
|---|---|---|---|
| Records The Repository of executed and stored contracts with metadata (value, counterparty, key dates, type) and attachments; full create, read, update, and delete so signed-contract data and PDFs sync to a warehouse, ERP, or CRM. | Open Orders Unshipped orders aggregated from sales channels sync into ERPs and fulfillment systems. | Records is specific to Ironclad and Open Orders to Linnworks — each maps to any object or custom field on the other side. | |
| Entities Structured records for counterparties and other parties linked to workflows and records; read and written to keep company and vendor master data aligned with a CRM or ERP. | Processed Orders Completed orders feed accounting and warehouse-based margin reporting. | Entities is specific to Ironclad and Processed Orders to Linnworks — each maps to any object or custom field on the other side. | |
| Obligations Post-signature commitments, milestones, and renewal dates tied to contracts; synced two-way to drive renewal, compliance, and finance reporting in downstream systems. | Stock Items SKU records keep product data aligned with ERPs and PIMs. | Obligations is specific to Ironclad and Stock Items to Linnworks — each maps to any object or custom field on the other side. | |
| Webhooks Event subscriptions that push workflow, approval, signature, document, and comment changes to Stacksync in near real time; created, listed, and deleted through the API across 40+ event types. | Stock Levels Per-location quantities sync outward so channels and planning tools reflect current availability. | Webhooks is specific to Ironclad and Stock Levels to Linnworks — each maps to any object or custom field on the other side. | |
| Workflow Approvals Per-workflow approval requests and their state; read to report approval status and cycle time, and status changes arrive live through the workflow_approval_status_changed event. | Locations Warehouse and fulfillment location records scope stock data during mapping. | Workflow Approvals is specific to Ironclad and Locations to Linnworks — each maps to any object or custom field on the other side. | |
| Signature Packets The e-signature packets on a workflow (sent, signatures collected, fully signed); read to track signing progress, with packet events delivered by webhook for real-time status. | Purchase Orders Replenishment POs sync with suppliers and accounting systems. | Signature Packets is specific to Ironclad and Purchase Orders to Linnworks — each maps to any object or custom field on the other side. |
How changes propagate between Ironclad and Linnworks
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.
Ironclad Linnworks Sub-second propagation
DetectionIronclad notifies Stacksync of record changes through webhook events. Native webhook subscriptions (POST /webhooks) fire on 40+ workflow, approval, signature, document, and comment events, and Ironclad retries a failing.
DeliveryEach detected change is written to Linnworks through its API, with automatic retries and rate-limit backoff.
Linnworks Ironclad Interval-based propagation
DetectionStacksync polls Linnworks for changes on an incremental schedule, reading only records changed since the previous pass. Polling on order and stock endpoints.
DeliveryEach detected change is written to Ironclad through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Ironclad: Limits are enforced per account per minute by endpoint: GET Workflows 400 and POST/PATCH Workflows 40; GET Records 600 and POST/PATCH Records 200; GET Entities 600 and POST/PATCH Entities 200; Webhooks 600; all other endpoints 800. Exceeding a limit returns HTTP 429, and Ironclad recommends exponential backoff with jitter.
- Linnworks: Per-endpoint rate limits apply on the Linnworks API.
What ships with Ironclad ⇄ Linnworks
Connect Ironclad and Linnworks for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Ironclad–Linnworks connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Ironclad or Linnworks 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 Ironclad or Linnworks record.
Observability
Monitoring
Track your Ironclad ⇄ Linnworks sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Ironclad and Linnworks.
How the Ironclad and Linnworks connectors work
Ironclad
- Integration surface
- REST/JSON Public API (CLM API) at https://na1.ironcladapp.com/public/api/v1 (NA1 and EU1 regions plus a demo/sandbox), with a native Webhooks subscription API; described by an OpenAPI 3.1 spec.
- Authentication
- OAuth 2.0 - Authorization Code grant (PKCE for public clients) and Client Credentials grant for server-to-server; access tokens are Bearer, expire after 6 hours, and every endpoint is gated by a resource scope. The legacy static API bearer token was deprecated on 2024-11-22.
- Change detection
- Native webhook subscriptions (POST /webhooks) fire on 40+ workflow, approval, signature, document, and comment events, and Ironclad retries a failing endpoint up to 10 times over about 13.6 hours with exponential backoff. Otherwise poll the list endpoints by last-updated. There is no database change-data-capture log.
- Capabilities
- read · write · webhooks
- Rate limits
- Limits are enforced per account per minute by endpoint: GET Workflows 400 and POST/PATCH Workflows 40; GET Records 600 and POST/PATCH Records 200; GET Entities 600 and POST/PATCH Entities 200; Webhooks 600; all other endpoints 800. Exceeding a limit returns HTTP 429, and Ironclad recommends exponential backoff with jitter.
Linnworks
- Integration surface
- REST API
- Authentication
- Application credentials and an install token exchanged for a session token
- Change detection
- Polling on order and stock endpoints
- Capabilities
- read · write
- Rate limits
- Per-endpoint rate limits apply on the Linnworks API
How it works
How to connect Ironclad to Linnworks — 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 Ironclad and Linnworks with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Ironclad
connected
Linnworks
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Ironclad and Linnworks 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 · Ironclad ⇄ LinnworksCustomers 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.
Ironclad LinnworksCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Ironclad and Linnworks integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Ironclad and Linnworks: authenticate both systems, choose the objects to sync (such as Ironclad's Records and Entities), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Ironclad: Workflows are the core unit - a live contract process (create, review, approve, sign) - while Records hold the executed contracts stored in the Ironclad Repository. Linnworks: Stock is tracked per location, and channel listings are mapped to internal SKUs, which is the join integrations rely on when reconciling marketplace data. Stacksync's field mapping accounts for these differences between Ironclad and Linnworks 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 Ironclad and Linnworks 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 Ironclad and Linnworks connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Ironclad–Linnworks integration in-house.
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Yes — Stacksync ships production-grade connectors for both Ironclad and Linnworks. 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 Ironclad: Native webhook subscriptions (POST /webhooks) fire on 40+ workflow, approval, signature, document, and comment events, and Ironclad retries a failing endpoint up to 10 times over about 13.6 hours with exponential backoff. Otherwise poll the list endpoints by last-updated. There is no database change-data-capture log. On Linnworks: Polling on order and stock endpoints. 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
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
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