ERP with Magento Interface

Magento, now branded Adobe Commerce in its commercial edition and continuing as Magento Open Source in its community edition, is the most flexible mainstream e-commerce platform on the market. It carries a substantial footprint in the German Mid-Market, particularly in B2B segments where the platform's customer-group pricing, configurable catalogue and contract pricing are valued. The ERP integration question for Magento is therefore not whether it can be connected — it can — but how to keep stock, prices, orders and customer data consistent without the complexity of the integration overtaking the cost of running the platform itself. This page describes the practical patterns.

Adobe Commerce versus Magento Open Source

Adobe Commerce is the commercial edition, distributed by Adobe since the 2018 acquisition. It includes B2B features (company accounts, requisition lists, quote workflows), the Page Builder, advanced search, business intelligence and Adobe-managed cloud hosting in the Adobe Commerce Cloud variant. Magento Open Source is the free community edition with a narrower feature scope, no native B2B module and no Adobe support. Both editions share a common core architecture and a common REST and GraphQL API surface, so ERP connectors generally work against either edition with adjustments for the B2B-specific endpoints in Adobe Commerce. The choice between editions is driven primarily by feature need and budget; the ERP integration design is largely the same.

Real-time stock and price synchronisation

The most operationally critical part of the Magento-ERP integration is real-time stock and price synchronisation. Magento's multi-source inventory (MSI) module since version 2.3 introduced a more sophisticated stock model that maps onto physical warehouses, drop-ship sources and salable quantity calculations; the ERP integration must understand this model rather than treating Magento stock as a flat number. Price synchronisation typically pushes from the ERP, with Magento as the canonical reading surface for the storefront. Customer-group pricing — central to B2B Magento — requires the ERP to maintain price-list assignments by customer group and to push them through to Magento on change. Mature integrations push prices via the bulk price-update API rather than per-product calls, which scales to catalogues of 100,000 SKUs and above.

Order flow and Magento adapters

Orders flow from Magento to the ERP via REST or GraphQL, typically through an adapter that subscribes to Magento order events and posts the order to the ERP's order-import endpoint. Established adapters exist for SAP S/4HANA (commerce data fabric, partner connectors), Microsoft Dynamics 365 Business Central (Sana Commerce, LS Retail, Insight Works), NetSuite (Folio3, FarApp), weclapp (native connector), Xentral (native connector), JTL-Wawi (partner-built) and Sage 100 (partner-built). The adapter should handle order modifications and cancellations, partial shipments, returns and credit notes — not just the initial order push. For high-volume sellers, asynchronous queueing with retry logic is essential.

B2B features, tax logic and OSS

The Adobe Commerce B2B module introduces company accounts (a buying organisation with multiple users, roles and approval workflows), requisition lists, shared catalogues and quote workflows. The ERP integration must accommodate these structures: an order from a company account links to a multi-level customer hierarchy in the ERP, the approval workflow may need to write back into Magento, and the quote-to-order conversion should flow cleanly through the integration. German tax handling requires VAT-ID validation (the ERP typically owns this via the VIES MIAS service), reverse-charge logic for intra-EU B2B sales, OSS tagging by country-of-consumption for B2C distance sales, and DATEV-compatible export of the resulting transactions. KassenSichV does not apply to pure Magento e-commerce flows, but merchants operating a physical store alongside Magento must keep the two flows separated for compliance purposes.

Häufig gestellte Fragen

Which ERP is best suited for Magento 2?

There is no universally best solution, because suitability depends heavily on shop size, B2B requirements and the depth of customisation. For smaller Magento Open Source shops, lean systems such as Billbee, Dolibarr or the cloud ERP Myfactory are often sufficient. For Adobe Commerce with B2B Companies, Quote and Catalog features, multichannel platforms such as Actindo, Dynamicweb or enterprise systems such as Oracle NetSuite are better positioned. What ultimately matters is whether the ERP fully covers the Magento APIs and data structures actually in use.

What distinguishes Magento Open Source from Adobe Commerce from an ERP perspective?

Both editions share the same codebase, but Adobe Commerce adds B2B features relevant to ERP integrations, such as Companies, Customer Segments and Quotes, which Magento Open Source does not include. Magento Open Source is primarily a B2C platform and free of charge, while Adobe Commerce is commercially licensed; according to market reports, the licence starts at around 22,000 US dollars per year and is tiered by Gross Merchandise Value. Native extensibility via Adobe Commerce Webhooks and Adobe I/O Events is also only available in Adobe Commerce (from version 2.4.4). An ERP that only supports the Open Source customer API therefore covers the B2B structures of Adobe Commerce only incompletely.

Which APIs does an ERP-Magento integration use, and should you rely on SOAP?

Magento 2 and Adobe Commerce provide three web service interfaces: REST, GraphQL and the older SOAP, with REST and GraphQL recommended for new integrations. REST is best suited to back-office write operations such as catalogue, inventory, price and order data, while GraphQL is designed for field-precise storefront queries and headless setups. SOAP is still supported up to version 2.4.8 but is considered outdated and is rarely used for new projects. For event-driven real-time synchronisation, native webhooks or Adobe I/O Events can be used, although only in Adobe Commerce.

How does inventory sync work via Magento's Multi-Source Inventory?

Magento's Multi-Source Inventory (MSI) manages stock across multiple physical locations (Sources), which are assigned to Stocks and Sales Channels. Instead of reducing quantities directly, MSI works with a Reservation Engine: when an order comes in, a reservation is booked that reduces the salable quantity to prevent overselling before the goods have actually been shipped. Only with invoicing and shipping is the reservation cleared and the stock finally deducted from the respective Source. An ERP should understand this logic and synchronise stock levels per source via the Inventory API so that inventory remains consistent between shop and ERP.

How much does a Magento-ERP integration cost, and how long does it take?

The range is wide and depends heavily on architecture and complexity. Plug-and-play connectors for small shops start in the low double-digit monthly range, while connector-based mid-market projects, including configuration and testing, usually fall between around 10,000 and 40,000 euros. Heavily customised or multi-shop B2B integrations, for example with deep Adobe Commerce integration, can reach 60,000 euros and more, and middleware solutions add ongoing licence costs on top. In terms of time, the spectrum ranges from a few weeks for simple point-to-point integrations to six to twelve months for complex enterprise scenarios with custom workflows.

Is migrating from Magento 1 to Magento 2 or Adobe Commerce still worthwhile?

Magento 1 has been end-of-life since 30 June 2020 and no longer receives official security patches, which is why a move to Magento 2 or Adobe Commerce is urgently advised. The old SOAP API of Magento 1 is not compatible with the REST and GraphQL interfaces of Magento 2, so existing ERP integrations effectively have to be rebuilt. When choosing a platform, note that Magento Open Source does not include native B2B, which depending on requirements calls for a plugin or a switch to Adobe Commerce. Anyone migrating should also check which ERP vendors actively maintain currently supported version lines such as 2.4.x, whose support for the 2.4.8 line runs until April 2028.