For Belgian local requirement, the F01DGS report (BLWI) would enable the creation of multiple lines in case of credit notes (from customers or vendors). In case of a credit note, the original line with correct central bank code must be the base to create another line with an adapted central bank code (original central bank code + CN) with exactly the same information.

When creating the output report (XML file) this will fit the Belgian local requirement for the F01DGS report.