For most B2B merchants on Magento, the ERP is the real source of truth. It holds customer accounts, contract prices, credit limits, inventory and invoices, and the store is only as reliable as its connection to it. A Magento ERP integration is the plumbing that keeps the two in agreement, so a buyer sees the price the ERP will bill, orders land without rekeying, and stock on the site matches stock in the warehouse.
This guide covers how Magento and Adobe Commerce integrate with the three ERPs we see most often: SAP, Oracle NetSuite and Microsoft Dynamics 365. It explains what syncs, the interfaces each ERP offers, and how to choose between a connector, middleware and a custom build. If NetSuite is your ERP, our NetSuite integration services team scopes and builds the integration around your business rules, and you can go deeper in our Magento NetSuite integration guide.
What a Magento ERP integration actually syncs
Whatever the ERP, the same data objects come up on every project. What changes is which system owns each one.
| Data | Usual system of record | Direction |
|---|---|---|
| Products, attributes and categories | ERP or PIM | ERP or PIM to Magento |
| Inventory and stock by location | ERP or WMS | ERP to Magento |
| Customer-specific and contract pricing | ERP | ERP to Magento |
| Customers and company accounts | ERP for B2B accounts | Usually both ways |
| Orders | Magento at creation, then ERP | Magento to ERP |
| Shipments and tracking | ERP or WMS | ERP to Magento |
| Invoices, credit limits and payment terms | ERP | ERP to Magento |
| Returns and refunds | Varies | Usually both ways |
Agree on ownership before anyone writes code. Most failed integrations we inherit did not fail on technology. They failed because two systems both believed they owned the same customer record or price.
The interfaces on each side
On the Magento side, both Magento Open Source and Adobe Commerce expose REST and GraphQL APIs, plus asynchronous and bulk REST endpoints that queue large jobs through the message queue. Adobe Commerce also supports out-of-process integration through Adobe I/O Events and App Builder, which is the integration model on Adobe Commerce as a Cloud Service. For B2B, Adobe Commerce adds company accounts, shared catalogs, negotiable quotes and requisition lists, all of which an ERP integration usually needs to feed.
The ERP side is where the three platforms differ.
Magento SAP integration
"SAP" covers several products, and the right integration depends on which one you run:
- SAP S/4HANA exposes OData APIs, documented on the SAP Business Accelerator Hub. Most modern S/4HANA integrations use these, often through SAP Integration Suite, SAP's own integration platform.
- SAP ECC, the older suite, typically integrates through IDocs and BAPI or RFC calls, usually via middleware rather than direct connections.
- SAP Business One, aimed at smaller companies, offers the Service Layer, a REST interface, along with the older DI API.
SAP projects tend to be the longest of the three. Pricing in SAP is often built from condition records that combine customer, material and volume rules, and reproducing that logic on the storefront is rarely a straight field mapping. A common pattern is to sync list prices and simpler customer prices in batch, and call SAP in real time for complex quotes or cart pricing where accuracy matters more than speed.
Magento NetSuite integration
NetSuite offers SuiteTalk web services in SOAP and REST forms, plus RESTlets, custom endpoints written in SuiteScript. Because NetSuite is cloud-only and widely used by mid-market brands, it has the most mature connector market of the three.
That is the one ERP where a hosted connector is often the right starting point. Our sister company Dominate builds a Magento NetSuite connector that syncs orders, fulfillments, inventory, customers, products, pricing, returns and custom fields. IWD's role is the services side: scoping the data model, configuring the sync to your business rules, and building the custom logic a connector does not cover.
Magento and Microsoft Dynamics 365 integration
Microsoft sells two different ERPs under the Dynamics 365 name, and they integrate differently:
- Dynamics 365 Business Central, for small and mid-sized companies, exposes REST APIs and OData web services.
- Dynamics 365 Finance and Supply Chain Management, for larger enterprises, exposes OData data entities and the Data Management Framework for batch and recurring imports and exports.
Business Central projects often look like NetSuite projects in scope. Finance and Supply Chain Management projects look more like SAP: more entities, more approval rules, and more reliance on middleware.
B2B features that depend on the ERP
On Adobe Commerce, the native B2B module is only as good as the data behind it. Company accounts need the ERP customer hierarchy, with parent and child accounts and the buyers allowed to order for each. Shared catalogs need the ERP's view of which customers can buy which products at which prices. Negotiable quotes need a way to hand an approved quote back to the ERP as a sales order. Payment on account needs credit limits and open balances from the ERP so the store can block an order that would exceed them. On Magento Open Source, the same requirements usually land on a B2B extension or custom code, which makes the integration design even more important.
Connector, middleware or custom: how to choose
There are three ways to build the bridge, and most mature integrations end up mixing them.
A pre-built connector maps the common objects out of the box. It is fastest to launch and easiest to maintain when your processes are close to standard. The limit is customization: unusual pricing, multi-warehouse allocation or B2B account hierarchies may need work beyond what the connector supports.
Middleware or iPaaS, such as SAP Integration Suite, MuleSoft or Boomi, sits between the systems and handles mapping, transformation, queuing and error handling. It suits companies that integrate many systems, not only the store, and that have or want an integration team to own it.
A custom integration written directly against both APIs gives full control and no extra license, but you own every line of it, including retries, logging and upgrades. It makes sense for narrow, high-value flows, such as real-time pricing calls, layered on top of a connector or middleware.
A useful rule: buy the commodity flows (orders out, inventory and shipments in) and build only the flows that encode how your business is different, usually pricing and account structure.
Not everything needs to be real time. Inventory and order export usually work well on short, frequent schedules. Customer-specific pricing at the cart and credit checks at checkout are the flows most likely to need a live call. Every live call adds a dependency on the ERP being up, so design a fallback for when it is not.
Common Magento ERP integration mistakes
- No single owner per field. Two systems editing the same customer address or price will eventually overwrite each other. Decide ownership per object and enforce it.
- Syncing everything in real time. It feels safer and usually makes the store slower and more fragile. Match the sync frequency to how fast each piece of data really changes.
- Ignoring failures. Integrations fail quietly. Every sync needs logging, alerts and a way to replay a failed message, or orders will go missing without anyone noticing.
- Mapping prices too late. Contract pricing is the hardest part of most B2B integrations. Model it in the first weeks of the project, not after the storefront is designed.
- Customizing the ERP to fit the store. Changing ERP processes to suit the website creates a long tail of problems. Adapt the integration layer instead.
- Forgetting the upgrade path. Custom integration code has to survive Magento upgrades and ERP updates. Keep it in its own module or service, with tests, so a version upgrade does not break order flow.
How to scope your integration
Before you request quotes, write down four things: which ERP and edition you run, which objects need to sync and which system owns each one, how fresh each object needs to be on the site, and what has to happen when the ERP is unavailable. With those answers, any experienced Magento integration agency can tell you quickly whether a connector covers you, where middleware earns its cost, and what has to be custom. Teams that skip this step usually discover the requirements mid-build, which is the most expensive time to find them.
Planning a Magento ERP integration?
We will map your data ownership, recommend connector, middleware or custom for each flow, and give you a firm, itemized quote.
Book a 30-minute assessmentFrequently asked questions
What is Magento ERP integration?
Magento ERP integration connects a Magento or Adobe Commerce store to an enterprise resource planning system such as SAP, NetSuite or Microsoft Dynamics 365. It syncs products, inventory, pricing, customers, orders, shipments and invoices so both systems agree without manual rekeying.
Can Magento integrate with SAP?
Yes. Magento integrates with SAP S/4HANA through its OData APIs, with SAP ECC through IDocs and BAPIs, and with SAP Business One through the Service Layer. Most SAP integrations run through middleware such as SAP Integration Suite because of the volume of data and the complexity of SAP pricing.
Is there a Magento connector for NetSuite?
Yes. Dominate, IWD's sister company, offers a hosted Magento NetSuite connector that syncs orders, fulfillment, inventory, customers, products and pricing. IWD provides the integration services around it, including configuration, custom business logic and testing.
Does Magento integrate with Microsoft Dynamics 365?
Yes. Dynamics 365 Business Central offers REST APIs and OData web services, and Dynamics 365 Finance and Supply Chain Management offers OData data entities and the Data Management Framework. The right approach depends on which Dynamics product you run and how complex your pricing is.
Should ERP sync be real time?
Only where it needs to be. Customer-specific pricing and credit checks often need live calls, while inventory, orders and shipments usually work well on frequent scheduled syncs. Real-time everything makes the store dependent on the ERP being available at every page load.
Does Adobe Commerce as a Cloud Service change ERP integration?
Yes. On the SaaS edition, integrations run outside the application through App Builder, API Mesh, events and webhooks instead of PHP modules inside Magento. Existing integrations need to be rebuilt in that pattern when you migrate.