Square ERP integration architecture and workflow design

Square ERP Integration Services

Connect Square to SAP, NetSuite, Salesforce, or a custom ERP without breaking inventory, orders, invoices, or customer workflows.

SQUARE + ERP

The API connection is not the hard part

Catalog and inventory ownership

Production Integrations — Catalog sync, orders, fulfillment, customer profiles, loyalty, gift cards, OAuth, and webhooks.

Order and invoice workflow mapping

International Deployments — Official integration work tied to Glovo, Cover Manager (Spain), and Zenchef (France).

Post-launch maintenance and monitoring

Ongoing Maintenance — Seeed maintains integrations through API changes, workflow evolution, and operational edge cases.

What matters in a production Square-to-ERP integration

Catalog and pricing sync

Define which system owns products, variants, modifiers, and pricing rules before the first sync runs. That is where many ERP rollouts start drifting.

Inventory integrity

Keep sellable stock, location-specific availability, and reconciliation rules aligned across Square and the back office so operations do not fall back to manual fixes.

Order and status mapping

Make sure order creation, updates, returns, and downstream state changes move between systems cleanly instead of stopping at the first successful API post.

Invoices and payment state

Finance teams need one readable story for invoice ownership, payment capture, and exception handling across Square and the ERP.

OAuth, webhooks, and audit trails

Production integrations need secure auth flows, retry discipline, and logging that explains what changed when operations asks questions after launch.

Multi-location exceptions

When locations or business units operate differently, the integration has to model those exceptions intentionally instead of hoping one generic rule set fits every store.

Integrations we have built and maintain

Glovo_logo_0

Seeed built the official Square integration with Glovo, connecting the delivery marketplace to Square.

Glovo
Talk through your integration
Glovo integration
CoverManager_logo_1

Seeed built the Square integration for CoverManager, the restaurant reservations platform in Spain. At Off Sónar Barcelona it processed thousands of transactions with zero failures and created Square checks in under 50 seconds.

CoverManager
Read the case
CoverManager integration
Zenchef_logo_2

Seeed built the official Square integration with Zenchef, the restaurant management platform in France.

Zenchef
Talk through your integration
Zenchef integration
medusa-square-plugin_logo_3

The plugin syncs catalog, inventory and customers between Medusa v2 and Square, with OAuth and an admin interface. Teams that connect Square to an ERP often rebuild the storefront at the same time.

medusa-square-plugin
See the plugin
medusa-square-plugin architecture
Guide_logo_4

Connector, iPaaS or custom build: when each route fits, and what usually breaks.

Guide
Read the guide
Square ERP integration guide

Frequently Asked Questions

About Square ERP integration architecture and implementation scope.

If Square touches inventory, orders, or invoicing, scope the workflow first.

Tell us which ERP or back-office system you need Square to connect to, which workflows matter most, and where the current handoff breaks down.

Get in touch with us

We are here for you! Please contact us using the form below and our specialists will contact you.

ERP-aware workflow design

ERP-aware workflow design

Source-of-truth decisions for catalog, inventory, orders, and invoices.

Webhook and audit discipline

Webhook and audit discipline

Retry logic, monitoring, and traceability for production operations.

Square + commerce depth

Square + commerce depth

Useful when the ERP project also affects storefront and back-office architecture.

medusa-square-plugin

medusa-square-plugin

Bidirectional Square sync for Medusa v2, open source on npm.