How do I fix UBL-DT-07?

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.

Is UBL-DT-07 a critical error?

Yes, UBL-DT-07 is a critical error that will cause invoice rejection. It must be fixed before submission.

Can UBL-DT-07 be automatically fixed?

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.

errorPeppol BIS 3.0

`UBL-DT-07`:Binary object elements shall contain the file name attribute

Your invoice contains an embedded attachment (EmbeddedDocumentBinaryObject) but the filename attribute is missing. The original file name must be specified.

Severity

Fatal

Rule set

Peppol BIS 3.0

Country

All EU

Fix type

INPUT REQUIRED

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. It checks whether binary object elements shall contain the file name attribute.

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.

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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. 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 PEPPOL Access Points
·Error returned: UBL-DT-07
·Specification: Peppol BIS 3.0

Before / After

Failing XML

<Invoice>
  <!-- Issue: Binary object elements shall contain the file name attribute -->
</Invoice>

Corrected XML

<Invoice>
  <!-- Issue resolved per Peppol BIS 3.0 -->
</Invoice>

Technical Reference

SpecPeppol BIS 3.0

StrategyRequires user input: Provide the filename for the embedded attachment including extension (e.g., invoice-details.pdf).

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 →

Handle UBL-DT-07 Automatically in Your Pipeline

The compliance engine auto-remediates this error with controlled safety policies and evidence pack generation.

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UBL-DT-07:Binary object elements shall contain the file name attribute