Two-way sync
Changes in Linnworks or Shipwire instantly reflect in both systems. No stale data, no manual imports.
Keep Linnworks and Shipwire in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
Shipwire runs the storefront and takes the orders; Linnworks 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 Returns, Purchase Orders, Trackings, Rates in Shipwire with Returns & Refunds, Shipping Services, Open Orders, Processed Orders in Linnworks field by field, in real time, and in both directions. You decide which system owns which fields — stock and pricing from Linnworks, order and customer detail from Shipwire — and Stacksync keeps every copy consistent and resolves conflicts by rules you set.
Where both systems keep customer records, a correction in either propagates to the other, ending dual maintenance.
Available quantities from Linnworks publish to Shipwire, so the store shows what can actually ship and stops overselling.
An order captured in Shipwire creates the matching record in Linnworks with customer, line items, and totals, so fulfillment and invoicing start without re-entry.
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.
| Linnworks objects | Shipwire objects | How this pairing syncs | |
|---|---|---|---|
| Purchase Orders Replenishment POs sync with suppliers and accounting systems. | Purchase Orders B2B orders with retailer-specific routing and compliance fields; managed via API alongside receivings for wholesale and marketplace fulfillment. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Stock Items SKU records keep product data aligned with ERPs and PIMs. | Returns Return orders raised against existing Orders; created via API and read back into support or analytics systems for reverse-logistics tracking. | Stock Items is specific to Linnworks and Returns to Shipwire — each maps to any object or custom field on the other side. | |
| Stock Levels Per-location quantities sync outward so channels and planning tools reflect current availability. | Trackings Shipment tracking numbers and carrier status returned as an Order subresource and surfaced through tracking.created, tracking.updated, and tracking.delivered webhook topics. | Stock Levels is specific to Linnworks and Trackings to Shipwire — each maps to any object or custom field on the other side. | |
| Locations Warehouse and fulfillment location records scope stock data during mapping. | Rates Shipping cost quotes for a cart or order; read-only, called at checkout time to estimate carrier costs rather than synced as stored records. | Locations is specific to Linnworks and Rates to Shipwire — each maps to any object or custom field on the other side. | |
| Suppliers Vendor records keep procurement data consistent across tools. | Orders B2C fulfillment orders (create, update, cancel, get) with item, hold, routing, and tracking subresources; typically written from a storefront or ERP and synced back with status and trackings. | Suppliers is specific to Linnworks and Orders to Shipwire — each maps to any object or custom field on the other side. | |
| Channel Listings Marketplace and webstore listing mappings tie channel products to internal SKUs. | Products Catalog SKUs including kits, virtual kits, and marketplace products; created and edited via API, commonly mastered in a PIM or ERP and pushed into Shipwire with dimensions and pricing. | Channel Listings is specific to Linnworks and Products to Shipwire — each maps to any object or custom field on the other side. |
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.
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 Shipwire through its API, with automatic retries and rate-limit backoff.
DetectionShipwire notifies Stacksync of record changes through webhook events. Webhooks (HMAC-SHA256 signed, near real-time) on order, tracking, stock, receiving, return, and product topics.
DeliveryEach detected change is written to Linnworks through its API, with automatic retries and rate-limit backoff.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Linnworks–Shipwire connection.
Changes in Linnworks or Shipwire instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Linnworks or Shipwire data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
Handle millions of events per minute without losing a single Linnworks or Shipwire record.
Track your Linnworks ⇄ Shipwire sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Linnworks and Shipwire.
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.
Authenticate Linnworks and Shipwire with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Pick the Linnworks and Shipwire 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.
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Yes. Stacksync provides a managed, real-time two-way integration between Linnworks and Shipwire: authenticate both systems, choose the objects to sync (such as Linnworks's Purchase Orders and Stock Items), map fields visually, and changes propagate both ways in milliseconds — no code required.
Common patterns for Linnworks and Shipwire: One customer master; Where Linnworks is the inventory system of record: stock stays accurate; New orders reach the back office. Where both systems keep customer records, a correction in either propagates to the other, ending dual maintenance.
Linnworks: REST API. Authentication: Application credentials and an install token exchanged for a session token. Shipwire: REST API (v3). Authentication: Bearer token sent as `Authorization: ShipwireKey <token>`; up to two keys are generated per account on the Users and Roles page, refreshable/expirable, over HTTPS only (separate sandbox at api.beta.shipwire.com). Stacksync manages authentication, retries, and rate limits on both sides.
Shipwire: List endpoints and webhook payloads return at most 20 sub-items per resource by default (recommended page max ~200), so orders or receivings with many line items must be traversed via next links. Linnworks: Orders are modeled in two populations, open orders and processed orders, and syncs typically treat processing as the state transition that moves a record between them. Stacksync's field mapping accounts for these differences between Linnworks and Shipwire 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 Linnworks and Shipwire records are not retained after a sync operation.
Stacksync pricing is usage-based and starts at $1,000/month, including the managed Linnworks and Shipwire connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Linnworks–Shipwire integration in-house.
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.
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Securely connects to your systems with:
Every pair below is a real-time, two-way sync. Search all 462 integrations available for Linnworks and Shipwire.