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ERP ⇄ Database

Linnworks to SQL Server integration — real-time, two-way sync

Keep Linnworks and SQL Server 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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Why teams connect Linnworks and SQL Server

Give your engineers Linnworks's data in SQL Server: read it with normal queries, write back through the sync, and skip the ERP API entirely.

ERP data sits behind interfaces built for the ERP's own modules, not for your internal systems. Teams that need those records, for reporting services, internal tools, or automations, end up writing integration code against a strict API and maintaining it through every upgrade.

Stacksync mirrors Purchase Orders, Suppliers, Channel Listings, Returns & Refunds from Linnworks into SQL Server and keeps both sides consistent in real time. Whatever Linnworks is the system of record for, whether financials, operations, people, or procurement, those records become rows your code can query, and changes written in SQL Server sync back into Linnworks with its validations respected.

Common use cases

  • Mirror on-premises ERP data held in SQL Server into cloud CRM and support systems
  • Feed a cloud warehouse from SQL Server continuously using native CDC instead of SSIS batch jobs
  • Keep stock levels consistent between Linnworks and external systems so multichannel listings stay aligned with sellable stock
  • Mirror processed orders, refunds, and returns into a warehouse for margin reporting across channels

React to ERP changes

Updates in Linnworks arrive as row changes in SQL Server, so jobs and triggers can respond as the business record changes.

Where Linnworks is the HR system of record: people data for internal systems

Worker and org records stay current in SQL Server for provisioning, access, and reporting systems that read from the database.

Controlled write-back

Choose exactly which tables and fields may flow from SQL Server back into Linnworks, keeping the ERP authoritative.

What you can sync between Linnworks and SQL Server

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 SQL Server objects
Suppliers Vendor records keep procurement data consistent across tools. Stored Procedures T-SQL logic that can validate or post-process synced rows.
Channel Listings Marketplace and webstore listing mappings tie channel products to internal SKUs. Databases Instance-level databases that scope a sync's reads and writes.
Returns & Refunds Post-sale records flow to finance and support systems. Schemas Namespaces (dbo and custom) used to organize synced tables.
Shipping Services Carrier and service definitions support label and tracking data in order syncs. Tables The primary sync target; rows map to records in connected systems.
Open Orders Unshipped orders aggregated from sales channels sync into ERPs and fulfillment systems. Views Read-side projections used as outbound sync sources.
Processed Orders Completed orders feed accounting and warehouse-based margin reporting. Columns Field-level mapping targets with T-SQL types.
What ships with Linnworks ⇄ SQL Server

Connect Linnworks and SQL Server for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Linnworks–SQL Server connection.

Real-time

Two-way sync

Changes in Linnworks or SQL Server instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Linnworks or SQL Server 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 SQL Server record.

Observability

Monitoring

Track your Linnworks ⇄ SQL Server 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 SQL Server.

How the Linnworks and SQL Server 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

SQL Server

Integration surface
SQL over the TDS wire protocol (Tabular Data Stream), via ODBC/JDBC/ADO.NET drivers
Authentication
Database credentials entered as a connection string or as parameters (host/user/password) in the Create New Sync page
Change detection
SQL Server Native Change Data Capture (CDC); a DBA runs a one-time setup script with sysadmin privileges to enable CDC and create Stacksync wrapper procedures
Capabilities
read · write · CDC
Rate limits
No API rate limits; throughput depends on instance resources, licensing tier, and connection limits
SQL Server setup guide
How it works

How to connect Linnworks to SQL Server — 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.

  1. 01

    Connect your apps

    Authenticate Linnworks and SQL Server with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.

    • OAuth 2.0
    • SSH tunnel
    • VPC peering
    Linnworks connected
    SQL Server connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the Linnworks and SQL Server 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.

    • Standard objects
    • Custom objects
    • Auto-schema
    objects · Linnworks ⇄ SQL Server
    Customers 12,480
    Sales Orders 8,213
    Invoices 5,902
    Items 1,344
  3. 03

    Map fields

    Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.

    • Auto-map
    • Type casting
    • Transforms
    Linnworks SQL Server
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

Linnworks and SQL Server integration FAQ

SECURITY

Security teams love 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.

Learn more about security
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:

OAuth 2 SSH Tunnelling SSL certificates IP Whitelisting VPN gateway VPC peering and more

Related integrations

Every pair below is a real-time, two-way sync. Search all 386 integrations available for Linnworks and SQL Server.

Popular · 8 of 386
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