errorDEXRECHNUNG

`BR-DE-22`:Duplicate Attachment Filenames

XRechnung requires all attachment filenames to be unique. Multiple EmbeddedDocumentBinaryObject elements have the same filename attribute.

We can fix this automatically

AUTO-FIX

Auto-fix: Append sequence numbers to duplicate filenames (e.g., document.pdf → document_1.pdf, document_2.pdf).

No manual changes needed

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Why This Error Matters

Invoice rejected. Attachments must have unique names for proper reference.

How to Fix It

Identify duplicates

Find attachments with same filename

Rename files

Add suffix like -2, -3 to duplicate filenames

Technical Details

XPath: /Invoice/cac:AdditionalDocumentReference/cac:Attachment/cbc:EmbeddedDocumentBinaryObject/@filename | All filename attributes must be distinct.

Common Causes

Duplicate attachment filenames in XRechnung
Multiple EmbeddedDocumentBinaryObject have same filename
German invoice requires unique attachment names
Attachment filename attribute not unique
Multiple files exported with identical names

Frequently Asked Questions

XRechnung requires all EmbeddedDocumentBinaryObject filename attributes to be unique. This error occurs when two or more attachments have the same filename.

Rename duplicate attachments to have unique filenames, e.g., invoice.pdf and invoice-2.pdf instead of two files named invoice.pdf.

German authorities require unique filenames to properly identify and process attached documents.

Yes, Invoice Navigator can automatically rename duplicate attachments by adding a numeric suffix.

BR-DE-22:Duplicate Attachment Filenames