PDF-14fatal
How to fix PDF-14
The XMP ConformanceLevel is not a known profile
A check of the PDF of a ZUGFeRD or Factur-X invoice, not of its XML. It runs when you upload a PDF; the embedded XML then gets the XSD and EN 16931 checks (XRechnung: also the KoSIT rules). Check your PDF with the ZUGFeRD validator or the Factur-X validator. What the PDF check covers.
What this rule checks
ConformanceLevel in the XMP names the profile: MINIMUM, BASIC WL, BASIC, EN 16931 (COMFORT in ZUGFeRD 1.0), EXTENDED, EXTENDED-CTC-FR or XRECHNUNG.
How to fix it
Set ConformanceLevel to the profile of the XML, spelled as in the specification (for example EN 16931 with a space).
Related rules
Validate your invoice
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