SAP Integration for Your Online Shop

SAP Business One (B1) is the most widely deployed ERP solution in mid-market trading and manufacturing companies. Integration with an online shop uses the Service Layer, a REST-based API that provides access to all business objects: items, business partners, orders, deliveries and invoices. We use the Service Layer as the primary interface, supplementing it with DI-API calls for complex business logic that cannot be mapped through the REST API.

A typical SAP Business One integration project includes synchronization of product master data with all relevant attributes (name, description, weight, units of measure, serial number requirements), price lists with customer-specific special prices and volume discounts, stock levels across multiple warehouses, customer address data with delivery addresses and contacts, and bidirectional order processing from web shop cart to SAP delivery note.

Regardless of whether you use SAP Business One or S/4HANA, the fundamental data flows repeat. The following overview shows the six most important synchronization areas that we implement in virtually every SAP integration project.

SAP integrations are technically demanding because SAP systems represent their own world with unique data types, naming conventions and processing logic. The following four topics appear in virtually every project, and we have a proven approach for each.

In SAP projects, an open-ended effort estimate is a particularly impractical basis for budgeting. That is why we state clear starting prices for the most common SAP scenarios. The binding fixed price is set after the free SAP system analysis — with no hidden items. Ongoing connector licenses and operations are shown transparently and separately from the project fixed price.

A SAP integration is a long-term investment. SAP updates, shop updates and changing business requirements demand continuous evolution of the interfaces. Our operations contracts ensure your integration is professionally maintained after go-live. Regular compatibility checks before SAP updates, proactive adaptation to new API versions and extension with additional data flows are part of our long-term support.

Talk to us about your SAP landscape and we will show you what an integration could look like. Also learn about DATEV integration as a complement to your SAP connectivity.

The SAP-shop interface transmits sensitive business data: customer-specific prices, order volumes, stock levels and sometimes personal data. We secure each of these data flows on multiple levels and consistently follow the principle of least privilege.

With large product catalogs and high order volumes, the performance of the SAP interface is business-critical. We rely on proven optimization strategies: delta synchronization transfers only changed records instead of the entire dataset. Batch processing combines individual requests into efficient bulk operations. Caching layers reduce the number of accesses to the SAP system for frequently queried data like price lists and product master data.

For order processing, we use asynchronous patterns: orders are passed to SAP via a message queue so the shop ordering process does not depend on SAP processing speed. Order confirmations and status changes flow back asynchronously. This approach ensures the shop remains performant even during SAP peak loads (daily closing, inventory counts, mass price changes). Monitoring dashboards visualize throughput, latency and queue depth of all SAP data flows in real time, enabling early detection and resolution of bottlenecks.