Business Activity Statement (BAS) Report and Box Reports are two similar reports in SAP Business One. In this article, I want to describe how BAS Reports differ from Box Reports.
BAS (Business Activity Statement) Reports are a feature that you can find in almost all localizations of SAP Business One that support VAT groups (e.g. in Poland, France, UK, Switzerland, Austria, Czechia but not in Germany).
Source: sap.com