References and competence areas in shop integration

Integration projects can be categorized into recurring scenarios, each requiring its own challenges and solution approaches. The following four patterns are the ones we encounter most frequently and illustrate the breadth of our work.

Many e-commerce companies create their invoices in the shop or ERP and hand them over to the tax advisor manually. With growing order volume, this process becomes a bottleneck: assigning accounts to hundreds of invoices per month and entering them in DATEV consumes significant staff capacity and is error-prone. The solution: an automated DATEV interface that assigns accounts to invoices, credit notes and payment receipts rule-based and transfers them to DATEV Unternehmen Online. Typical payback period: under six months with over 200 documents per month (project experience).

Switching the ERP system while the shop continues operating is one of the most demanding integration scenarios. During the transition phase, both ERP systems must run in parallel, data must be kept consistent, and the cutover to the new system must be executed with minimal operational disruption. Our middleware architecture greatly facilitates this scenario: the shop adapter remains unchanged, only the ERP connector is replaced. Parallel operation can be controlled through routing in the middleware.

We are convinced that the quality of project work shows in the first twelve months after go-live, not on handover day. That is why we place particular emphasis on maintainability, extensibility and comprehensive documentation. Three aspects distinguish our project work from generic integration providers: the depth of platform-specific expertise in Shopware CE and the leading ERP systems, the structured and documented project approach, and the long-term perspective on maintainable, extensible architectures.

The contract renewal rate of 97 percent (project experience) is the clearest signal that our project work convinces. But numbers alone do not tell the whole story. In personal conversations, we regularly hear which aspects of our work make the biggest difference. First, the depth of system knowledge: we know the specifics of SAP interfaces, Dynamics APIs and DATEV formats from daily project practice, not from documentation. Second, the quality of error handling: our middleware solutions are designed for production, not for demos. Third, the long-term perspective: we build architectures that grow with the business instead of short-term fixes that become problems in six months.

Particularly valued is our proactive communication: weekly status updates, shared project boards and transparent documentation of risks and decisions. When a technical problem occurs, we communicate it immediately with analysis and solution proposals rather than sweeping it under the rug. This attitude builds the trust that forms the foundation for the long-term partnerships with our clients.

Our technical articles also give insight into how we work: Observability for Interfaces describes how we monitor data flows, Building Test Environments for ERP Interfaces shows our approach before go-live, and Idempotency and Retry Strategies explains the error concept behind every connection.