Real-time
Two-way sync
Changes in Linnworks or Seismic instantly reflect in both systems. No stale data, no manual imports.
ERP ⇄ CRM
Linnworks to Seismic integration — real-time, two-way sync
Keep Linnworks and Seismic 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 Linnworks and Seismic
Close the gap between front office and back office: Seismic and Linnworks share customers and status in real time, in both directions.
Seismic holds the customer relationship; Linnworks runs the operations and records behind the business. The two overlap wherever the same organizations and transactions matter to both, and when that overlap is bridged by re-keying or overnight batch, each side spends the day working from stale data.
Stacksync syncs Digital Sales Rooms, Reporting Activities, Library Content, Content Versions in Seismic with Suppliers, Channel Listings, Returns & Refunds, Shipping Services in Linnworks field by field, in real time, and in both directions. You decide which system owns which fields; Stacksync keeps every copy consistent and resolves conflicts by rules you set.
Common use cases
- 01 React to ContentManager and DSR webhook events to update a database when documents are published, versioned, or expired.
- 02 Provision and deactivate Seismic Users and User Groups from an HRIS or IdP so content access mirrors joiner, mover, and leaver changes.
- 03 Sync product and listing data with a PIM so channel listings stay aligned with the catalog
- 04 Push customer and order data to a CRM or marketing platform for post-purchase campaigns
Common sync patterns
Where Linnworks handles order-to-cash: closed-won flows through
A deal won in Seismic creates or updates the customer in Linnworks with clean data, so fulfillment and invoicing start without re-entry.
Where Linnworks is the finance system of record: money status on the account
Invoice and payment state from Linnworks shows on the account in Seismic, so reps see balances before promising the next order.
One customer master
Where both systems keep customer or organization records, corrections in either propagate to the other, ending dual maintenance.
What you can sync between Linnworks and Seismic
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 | Seismic objects | How this pairing syncs | |
|---|---|---|---|
| Locations Warehouse and fulfillment location records scope stock data during mapping. | User Groups Group definitions and membership that govern content access; synced from an IdP or HRIS to keep permissions current. | Locations is specific to Linnworks and User Groups to Seismic — each maps to any object or custom field on the other side. | |
| Purchase Orders Replenishment POs sync with suppliers and accounting systems. | Teamsites Tenant-scoped workspace partitions organizing Library content, permissions, and config; scoped by teamSiteId on most content calls. | Purchase Orders is specific to Linnworks and Teamsites to Seismic — each maps to any object or custom field on the other side. | |
| Suppliers Vendor records keep procurement data consistent across tools. | LiveSend Links Trackable content-share links created via the engagement API; their open and view engagement is read back through Reporting. | Suppliers is specific to Linnworks and LiveSend Links to Seismic — 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. | Digital Sales Rooms Buyer-facing microsites (DSRs); lifecycle and content-change events surface via webhooks, currently marked Early Access. | Channel Listings is specific to Linnworks and Digital Sales Rooms to Seismic — each maps to any object or custom field on the other side. | |
| Returns & Refunds Post-sale records flow to finance and support systems. | Reporting Activities Content-interaction, engagement, and usage analytics extracted read-only through the ETL-oriented Reporting API v2 for a warehouse. | Returns & Refunds is specific to Linnworks and Reporting Activities to Seismic — each maps to any object or custom field on the other side. | |
| Shipping Services Carrier and service definitions support label and tracking data in order syncs. | Library Content Documents, decks, and assets stored in teamsites; created, moved, and retrieved via the Content Management API, each with a contentId. | Shipping Services is specific to Linnworks and Library Content to Seismic — each maps to any object or custom field on the other side. |
How changes propagate between Linnworks and Seismic
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.
Linnworks Seismic 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 Seismic through its API, with automatic retries and rate-limit backoff.
Seismic Linnworks Sub-second propagation
DetectionSeismic notifies Stacksync of record changes through webhook events. Webhooks for content, version, user, group, workflow, DSR, and LiveSend events.
DeliveryEach detected change is written to Linnworks through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Linnworks: Per-endpoint rate limits apply on the Linnworks API.
- Seismic: Tiered per-endpoint limits over a rolling 60-second window; exceeding returns HTTP 429, with X-Seismic-Remaining-Calls and X-Seismic-Total-Calls headers.
What ships with Linnworks ⇄ Seismic
Connect Linnworks and Seismic for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Linnworks–Seismic connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Linnworks or Seismic 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 Linnworks or Seismic record.
Observability
Monitoring
Track your Linnworks ⇄ Seismic sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Linnworks and Seismic.
How the Linnworks and Seismic connectors work
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
Seismic
- Integration surface
- REST Integration APIs and Reporting API v2
- Authentication
- OAuth 2.0 / OpenID Connect; Bearer token in the Authorization header, via Authorization Code (user context) or client-credentials app-only flows
- Change detection
- Webhooks for content, version, user, group, workflow, DSR, and LiveSend events; the Reporting API v2 is polled for batch historical extracts (ETL-oriented, not high-frequency)
- Capabilities
- read · write · webhooks
- Rate limits
- Tiered per-endpoint limits over a rolling 60-second window; exceeding returns HTTP 429, with X-Seismic-Remaining-Calls and X-Seismic-Total-Calls headers
How it works
How to connect Linnworks to Seismic — 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 Linnworks and Seismic with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Linnworks
connected
Seismic
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Linnworks and Seismic 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 · Linnworks ⇄ SeismicCustomers 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.
Linnworks SeismicCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Linnworks and Seismic integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Linnworks and Seismic: authenticate both systems, choose the objects to sync (such as Linnworks's Locations and Purchase Orders), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Linnworks: REST API. Authentication: Application credentials and an install token exchanged for a session token. Seismic: REST Integration APIs and Reporting API v2. Authentication: OAuth 2.0 / OpenID Connect; Bearer token in the Authorization header, via Authorization Code (user context) or client-credentials app-only flows. Stacksync manages authentication, retries, and rate limits on both sides.
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Seismic: User provisioning follows SCIM 2.0 alongside legacy user endpoints, aligning identity sync with standard IdP connectors. Linnworks: The Linnworks API uses a token-exchange model: application credentials plus a per-account install token are exchanged for a session token that authorizes subsequent calls. Stacksync's field mapping accounts for these differences between Linnworks and Seismic 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 Linnworks and Seismic 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 Linnworks and Seismic connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Linnworks–Seismic integration in-house.
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Yes — Stacksync ships production-grade connectors for both Linnworks and Seismic. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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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