What every final document contains
Every final invoice and credit note is a PDF/A-3 file with embedded ZUGFeRD/Factur-X XML in the EN 16931 profile. People read the PDF, accounting software reads the XML. Both come from the same checked data.
Technical validation before release
Before a document counts as finished, the app checks it technically: whether the XML matches the EN 16931 profile and its business rules, whether the PDF/A-3 is valid and whether the XML is embedded correctly. It stores the result as a validation report for every document. Only then do customers get the invoice link.
The validation report confirms format and business rules – not that every tax fact is right. VAT rates come from Shopify; you are responsible for the tax treatment.
The preview is not an e-invoice yet
The PDF preview under Invoices is a plain PDF without an invoice number and without embedded XML. It is only for checking.
Formats the app does not offer
- no separate XRechnung/UBL export,
- no delivery via Peppol.
If a customer explicitly requires XRechnung or Peppol, for example a public authority, you need another tool for that. More on our blog: ZUGFeRD or XRechnung?