Coresuite Country Package

E-invoicing in Germany: How to implement the obligation with SAP Business One

That Coresuite Country Package (originally from Coresystems, now part of the SAP/Boyum world) is an add-on bundle for SAP Business One that covers country-specific requirements for the DACH region. It closes gaps left by SAP's standard localisation for Germany, Austria, and Switzerland, particularly concerning payment documents, dunning, DATEV interfaces, statutory forms, and industry-standard reporting.

Context

The package typically includes extended dunning with configurable dunning levels, payment advices, balance confirmations, SEPA payment runs with German field requirements, reconciliation lists for tax consultants, DATEV-compatible exports, print header templates for German invoice and credit note formats, and country-specific master data extensions (e.g., mandatory HR fields, industry keys). Technically, the Country Package is based on the Coresuite. Framework and is closely integrated with Customize and Designer — for example, invoice layouts are created as pre-defined Coresuite Designer layouts, which are then adapted to client specifications via Customize. The package is updated in its own release cycles, which are aligned with changes in tax law (e-invoicing, ViDA, ELSTER format changes).

Demarcation

The Coresuite Country Package is not identical to the SAP localisation for Germany, which is included in the B1 standard – it supplements it with functions that SAP does not provide in the basic product. It also differs from the Versino Financial Suite, which pursues similar goals but with its own architecture, its own tables (@VPS_-prefix) and a divergent reporting package. Those using both products within the same client should consciously manage any overlap in reminders, payment advices, and DATEV integrations to avoid duplicate logic and conflicting layouts.