How to add/map data to XML tags for Online VAT Reporting for Spain XML output

Summary:

Hello,

In some cases, the AEAT API rejects transactions due to missing data.
We have a requirement where the client wants to add additional tags to the XML output to prevent this from happening.

The information to be added corresponds to the following fields, as entered when manually creating an invoice on the AEAT platform:
Section: Desglose de Prestación de Servicios
→ Tipo de Factura
→ Importe no sujeto por reglas de localización

Section: Datos Factura Emisor
→ Nro Factura Emisor
→ Nro Factura Emisor Final

These information are input and stored in the AR transaction using DFFs.

We would like to know how to configure the setup to include this information in the