UBL-DT-07:Binary object elements shall contain the file name attribute
Fix: This requires user input to resolve. Review the relevant cbc: and cac: elements in your Invoice XML and provide the correct value. (UBL-DT-07). Provide the required value in the free validator.
Your invoice contains an embedded attachment (EmbeddedDocumentBinaryObject) but the filename attribute is missing. The original file name must be specified.
Engine Classification
Business data required · Explicit input workflow · No assumptions made
Required input: Attachment Filename
What is UBL-DT-07?
UBL-DT-07 is a fatal validation rule defined in the Peppol BIS 3.0 specification.
When this rule fires, the invoice is rejected by Peppol access points and never reaches the buyer.
Why This Error Matters
Invoice will be rejected. Receiving systems need the filename to save and identify the attachment.
UBL-DT-07 is a hard failure — the invoice must be corrected and re-sent before it can reach the recipient.
Validator Behavior
- ·Causes invoice rejection
- ·Rejected by PEPPOL Access Points
- ·Error returned: UBL-DT-07
- ·Specification: Peppol BIS 3.0
How to Fix It
Identify the missing data
Your invoice contains an embedded attachment (EmbeddedDocumentBinaryObject) but the filename attribute is missing. The original file name must be specified.
Provide the required value
This requires user input to resolve. Review the relevant cbc: and cac: elements in your Invoice XML and provide the correct value. (UBL-DT-07).
Re-validate your invoice
Upload the corrected invoice to confirm UBL-DT-07 is resolved.
Before / After
<Invoice> <!-- Issue: Binary object elements shall contain the file name attribute --> </Invoice>
<Invoice> <!-- Issue resolved per Peppol BIS 3.0 --> </Invoice>
Technical Reference
Common Causes
- ·Attachment embedded without preserving original filename
- ·ERP export omitted the filename attribute
- ·Binary content copied from source without metadata
- ·File uploaded through interface that did not capture filename
- ·Template missing filename attribute on attachment element
Seeing this in production? The API handles UBL-DT-07 automatically. See the fix response →
Frequently Asked Questions
Your invoice contains an embedded attachment (EmbeddedDocumentBinaryObject) but the filename attribute is missing. The original file name must be specified.
This requires user input to resolve. Review the relevant cbc: and cac: elements in your Invoice XML and provide the correct value. (UBL-DT-07). You can also use Invoice Navigator's compliance engine to correct this automatically in your pipeline.
Yes, UBL-DT-07 is a critical error that will cause invoice rejection. It must be fixed before submission.
Many instances of UBL-DT-07 can be automatically corrected using Invoice Navigator's compliance engine. The fix is applied in your pipeline with full audit evidence.
Related Content
Last updated: 14 April 2026
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