Linnworks to Microsoft 365 integration — real-time, two-way sync

Yes. Stacksync provides a managed, real-time two-way integration between Linnworks and Microsoft 365: authenticate both systems, choose the objects to sync (such as Linnworks's Processed Orders and Stock Items), map fields visually, and changes propagate both ways in milliseconds — no code required.

Common patterns for Linnworks and Microsoft 365: Master data corrections travel; Where Microsoft 365 faces customers and Linnworks carries account records; Where Microsoft 365 collects payments: transactions post through. A customer, supplier, or contact detail corrected in either system updates the other, ending duplicate maintenance.

Linnworks: REST API. Authentication: Application credentials and an install token exchanged for a session token. Microsoft 365: REST API (Microsoft Graph). Authentication: OAuth 2.0 via Microsoft Entra ID, with delegated or application permissions. Stacksync manages authentication, retries, and rate limits on both sides.

Microsoft 365: Delta queries return only resources changed since the last sync token, which keeps incremental syncs cheap on large tenants. 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 Microsoft 365 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 Microsoft 365 records are not retained after a sync operation.

Stacksync pricing is usage-based and starts at $1,000/month, including the managed Linnworks and Microsoft 365 connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Linnworks–Microsoft 365 integration in-house.