Why does JustOn Billing & Invoice Management not support a hybrid format?
Our software generates a PDF file anyway when finalizing the invoice and now also generates the structured XML file. From our point of view, support for a hybrid format that contains a second PDF file and a structured file is therefore not immediately necessary.
However, we are working on expanding our e-invoice functionalities, and other data formats (including Factur-X and ZUGFeRD) and transmission channels (like Avalara and DATEV) are currently being evaluated or planned.