Understanding General Resolution 1575
The AFIP (Administracion Federal de Ingresos Públicos) created the legal invoice type M through General Resolution 1575. To meet the legal requirements, you must add a value for invoice group M to UDC 76/B1 and then create new tax groups by using the Tax Groups program (P76A15) and assign invoice group M on the Invoice Shipment Note Letter - ARG - 00 form.
Note: Vouchers in invoice group M are
prenumbered. Therefore, companies using invoice group M should not set up the
autoprinter option in the Work with RG100 -Autoprinter Supp-AR/SOP program
(P76A004).