An interface in SAP Business One describes mechanisms and tools that enable data exchange, the integration of external systems and the visualisation of internal logical relationships, thus connecting integrated financial accounting with connected applications.

In the SAP Business One ecosystem, the interface primarily connects integrated financial accounting with external systems or analysis tools so that companies can control financial data, external payment transactions and reporting logic. To do this, the system uses defined endpoints to import and export data or trigger transactions; in particular, financial interfaces to add-ons such as DATEV or Magpie, interfaces to bank processing for bank statement processing and electronic payment transactions as well as integrations to web shops, dunning, cost accounting and asset accounting. The SAP Business Integration Hub also supports the automatic import of foreign currency exchange rates, for example those published by the European Central Bank, which means that financial processes can also be automated. The Web Client also utilises visual interfaces such as the linking plan, which graphically displays relationships between base, target and reference documents and thus facilitates the process view of documents such as sales orders, deliveries and downstream documents. With Drag & Relate, users can link data from areas such as sales, purchasing, stock, production, service, journal entries and business partner data, allowing them to design queries flexibly and recognise relationships more quickly. Finally, the Database Wizard in Crystal Reports serves as an interface for creating and managing data connections for individual reports, while the Semantic Layer maps company data in virtual models with familiar terminology, making it easier for business users to access, edit, organise and analyse information.
Demarcation:
In the context described, the term interface includes both technical integration points for data exchange (financial interfaces, bank processing, web shop connection, integration of foreign currency exchange rates) as well as visual and analytical tools such as the linking plan, drag & relate, the database wizard in Crystal Reports and the semantic layer. In this way, the interface goes beyond a purely technical, field-based view and distinguishes itself from mere data fields, as the semantic layer presents the company data in a meaningful and familiar language and thus places the business user's professional view at the centre.
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