FR-R-007:Factur-X XML must be embedded in PDF
Factur-X requires XML to be embedded as PDF attachment.
Engine Classification
Financial or legal field · Modification blocked by policy
Reason: Factur-X is a hybrid format requiring XML to be embedded as an attachment within a PDF/A-3 document. The invoice must be regenerated using Factur-X compliant software that properly embeds the XML in the PDF.
What is FR-R-007?
FR-R-007 is a fatal validation rule defined in the factur-x specification (FRA national rules). It validates the A-3 attachment requirement element in the UBL invoice XML.
When this rule fires, the invoice is non-compliant and will be rejected by Peppol access points and national validation services. The sending system receives a rejection response and the invoice does not reach the buyer.
Target path: PDF/A-3 attachment requirement
Why This Error Matters
Factur-X is a hybrid format combining PDF and XML.
FR-R-007 is a hard failure. Invoices that trigger this rule are rejected at the access point and never reach the recipient. In Peppol networks, this means your sending system receives an MLR (Message Level Response) with a rejection status. The invoice must be corrected and re-sent, adding delay to your payment cycle.
Validator Behavior
- ·Causes invoice rejection
- ·Rejected by Chorus Pro
- ·Error returned: FR-R-007
- ·Specification: factur-x
How to Fix It
Create PDF/A-3
Base document must be PDF/A-3 compliant
Embed XML
Attach XML as Alternative representation
XML Example
Generic example based on the rule's target XPath. Your actual XML structure may differ.
<!-- Triggers validation error --> <A-3 attachment requirement></A-3 attachment requirement>
<!-- Corrected --> <A-3 attachment requirement>VALID_VALUE</A-3 attachment requirement>
Technical Reference
PDF/A-3 attachment requirementCommon Causes
- ·XML sent separately
- ·Wrong PDF version
- ·Missing attachment
Seeing this in production? The API handles FR-R-007 automatically. See the fix response →
Frequently Asked Questions
Factur-X requires XML to be embedded as PDF attachment.
Embed XML file in PDF/A-3 format with correct relationship. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, FR-R-007 is a critical error that will cause invoice rejection. It must be fixed before submission.
See Also
Related Errors
Last updated: 27 February 2026
Handle FR-R-007 Automatically in Your Pipeline
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