With the release SAP S/4HANA, on-premise edition 1511 and SAP S/4HANA Finance 1605 country-specific reports were discontinued or partially replaced with newer transactions and programs.
Example: Report S_PL0_09000447 (Withholding Tax Return) for Australia, Japan and New Zealand was replaced for RFIDYYWT (Generic Withholding Tax Report) . Just for Italy has a specific report RPFIWTIT_CU.
For mode details about country specific report, please check the attachment PDF of note:
Support Consultant, ERP FIN, SAP Active Global Support