Real-time
Two-way sync
Changes in Gatekeeper or Linnworks instantly reflect in both systems. No stale data, no manual imports.
Business productivity ⇄ ERP
Gatekeeper to Linnworks integration — real-time, two-way sync
Keep Gatekeeper 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.
- 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 Gatekeeper and Linnworks
Bridge the tools people work in and the system the business runs on: real-time, two-way sync between Gatekeeper and Linnworks.
The ERP holds the records the business is run on, and it is rarely where day-to-day work happens. Gatekeeper 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 Bridging them by hand, or by nightly file transfer, leaves each side out of date for hours at a time.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 Users, Categories, Contracts, Vendors (Suppliers) in Gatekeeper with Stock Items, Stock Levels, Locations, Purchase Orders 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 Sync Vendors (Suppliers) with a CRM or ERP so counterparty, compliance, contact, and spend records match across the VCLM and the systems of record.
- 02 Push generated documents into Gatekeeper Files, or pull executed contract PDFs and compliance evidence out into a document store or archive.
- 03 Sync orders from Linnworks into an ERP or accounting system as they are processed, without CSV exports
- 04 Keep stock levels consistent between Linnworks and external systems so multichannel listings stay aligned with sellable stock
Common sync patterns
Master data corrections travel
A customer, supplier, or contact detail corrected in either system updates the other, ending duplicate maintenance.
Where Gatekeeper faces customers and Linnworks carries account records
Order, invoice, or account status from Linnworks appears alongside the customer in Gatekeeper, so front-line teams answer from live data.
Where Gatekeeper collects payments: transactions post through
Payment events sync into Linnworks as they occur, keeping the enterprise records current without manual entry.
What you can sync between Gatekeeper 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.
| Gatekeeper objects | Linnworks objects | How this pairing syncs | |
|---|---|---|---|
| Vendors (Suppliers) Company records for counterparties and suppliers with onboarding status, compliance, risk, contacts, and spend; read and written to keep vendor master data aligned with a CRM or ERP. | Channel Listings Marketplace and webstore listing mappings tie channel products to internal SKUs. | Vendors (Suppliers) is specific to Gatekeeper and Channel Listings to Linnworks — each maps to any object or custom field on the other side. | |
| Files Document files attached to contracts and vendors - executed PDFs, certificates, and compliance evidence; read to pull signed files and evidence out, or written to push generated documents in. | Returns & Refunds Post-sale records flow to finance and support systems. | Files is specific to Gatekeeper and Returns & Refunds to Linnworks — each maps to any object or custom field on the other side. | |
| Workflow form data The structured data captured on Gatekeeper workflow forms (intake requests, vendor onboarding, risk assessments); exposed by the API since 2025 so form results sync into an operational database, not only contract and vendor records. | Shipping Services Carrier and service definitions support label and tracking data in order syncs. | Workflow form data is specific to Gatekeeper and Shipping Services to Linnworks — each maps to any object or custom field on the other side. | |
| Custom data groups Customer-configured custom fields and data groups; because the JSON:API and its docs are dynamic, any custom data added in Configuration exposes the same read/write endpoints as the standard objects and syncs the same way. | Open Orders Unshipped orders aggregated from sales channels sync into ERPs and fulfillment systems. | Custom data groups is specific to Gatekeeper and Open Orders to Linnworks — each maps to any object or custom field on the other side. | |
| Users Gatekeeper user and team records governed by role-based access; read to map contract and vendor owners, approvers, and internal contacts to CRM or HR records. | Processed Orders Completed orders feed accounting and warehouse-based margin reporting. | Users is specific to Gatekeeper and Processed Orders to Linnworks — each maps to any object or custom field on the other side. | |
| Categories The classification taxonomy applied to contracts and vendors (type, department, business unit); synced so categorization stays consistent between Gatekeeper and downstream reporting or ERP dimensions. | Stock Items SKU records keep product data aligned with ERPs and PIMs. | Categories is specific to Gatekeeper and Stock Items to Linnworks — each maps to any object or custom field on the other side. |
How changes propagate between Gatekeeper 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.
Gatekeeper Linnworks Interval-based propagation
DetectionStacksync polls Gatekeeper for changes on an incremental schedule, reading only records changed since the previous pass. No native developer webhook subscription API and no database change-data-capture log.
DeliveryEach detected change is written to Linnworks through its API, with automatic retries and rate-limit backoff.
Linnworks Gatekeeper 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 Gatekeeper through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Gatekeeper: Gatekeeper publishes no fixed public per-minute request quota; throughput is governed per key by its endpoint permissions, and every call is recorded (parameters, payload, response) under API Logs for monitoring. Pace bulk writes and use JSON:API pagination on list endpoints.
- Linnworks: Per-endpoint rate limits apply on the Linnworks API.
What ships with Gatekeeper ⇄ Linnworks
Connect Gatekeeper and Linnworks for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Gatekeeper–Linnworks connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Gatekeeper 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 Gatekeeper or Linnworks record.
Observability
Monitoring
Track your Gatekeeper ⇄ Linnworks sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Gatekeeper and Linnworks.
How the Gatekeeper and Linnworks connectors work
Gatekeeper
- Integration surface
- RESTful API following the JSON:API specification, tenant-scoped with interactive docs at {tenant}.gatekeeperhq.com/api_docs and a published Postman collection. The API is dynamic: it exposes the standard Contract and Vendor objects plus any custom data groups and workflow-form data configured in the tenant.
- Authentication
- API keys created and managed under Configuration > API Keys and passed as a token; each key carries granular per-endpoint permissions set to read-only or write, so access is scoped per object. Multiple keys can be issued and revoked independently.
- Change detection
- No native developer webhook subscription API and no database change-data-capture log; detect changes by polling the JSON:API list endpoints filtered and sorted on updated-at timestamps. Gatekeeper's own event automation - Workflow Engine phase transitions and Interconnect process orchestration - runs inside the platform rather than as a subscribable webhook stream.
- Capabilities
- read · write
- Rate limits
- Gatekeeper publishes no fixed public per-minute request quota; throughput is governed per key by its endpoint permissions, and every call is recorded (parameters, payload, response) under API Logs for monitoring. Pace bulk writes and use JSON:API pagination on list endpoints.
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 Gatekeeper 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 Gatekeeper 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.
Gatekeeper
connected
Linnworks
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Gatekeeper 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 · Gatekeeper ⇄ 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.
Gatekeeper LinnworksCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Gatekeeper and Linnworks integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Gatekeeper and Linnworks: authenticate both systems, choose the objects to sync (such as Gatekeeper's Vendors (Suppliers) and Files), map fields visually, and changes propagate both ways in milliseconds — no code required.
-
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 Gatekeeper and Linnworks records are not retained after a sync operation.
-
Stacksync pricing is usage-based and starts at $1,000/month, including the managed Gatekeeper and Linnworks connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Gatekeeper–Linnworks integration in-house.
-
Yes — Stacksync ships production-grade connectors for both Gatekeeper and Linnworks. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
-
Change detection on Gatekeeper: No native developer webhook subscription API and no database change-data-capture log; detect changes by polling the JSON:API list endpoints filtered and sorted on updated-at timestamps. Gatekeeper's own event automation - Workflow Engine phase transitions and Interconnect process orchestration - runs inside the platform rather than as a subscribable webhook stream. 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.
-
On the Gatekeeper side: Users, Categories, Contracts, Vendors (Suppliers), plus custom fields where Gatekeeper exposes them. On the Linnworks side: Stock Items, Stock Levels, Locations, Purchase Orders. Stacksync auto-detects both schemas and converts types between the two systems.
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
Every pair below is a real-time, two-way sync. Search all 405 integrations available for Gatekeeper and Linnworks.
Popular · 4 of 405
No integrations match .
