BR-DEX-03:Eine Sub Invoice Line (BG-DEX-01) muss genau eine "SUB INVOICE LINE VAT...
Fix: Missing sub-line VAT info. Each Sub Invoice Line (BG-DEX-01) must contain exactly one VAT information group (BG-DEX-06). Upload your invoice to fix this automatically.
Missing sub-line VAT info. Each Sub Invoice Line (BG-DEX-01) must contain exactly one VAT information group (BG-DEX-06).
Engine Classification
Validate and normalize XRechnung UBL extension structure
Confidence: 75% · Applied automatically in pipeline
What is BR-DEX-03?
BR-DEX-03 is a fatal validation rule defined in the XRechnung (Germany) specification (DEU national rules). It validates the ext:UBLExtensions element in the UBL invoice XML.
When this rule fires, the invoice is rejected by Peppol access points and never reaches the buyer.
Target path: //ext:UBLExtensions
Why This Error Matters
Invoice will be rejected. XRechnung extension rules for German invoices must be followed for proper processing by German public sector recipients.
BR-DEX-03 is a hard failure — the invoice must be corrected and re-sent before it can reach the recipient.
Invoice Navigator can automatically correct this error in your pipeline. The fix is applied with full audit evidence, so your compliance trail remains intact.
Validator Behavior
- ·Causes invoice rejection
- ·Rejected by XRechnung endpoints
- ·Error returned: BR-DEX-03
- ·Specification: XRechnung (Germany)
How to Fix It
Find the incorrectly formatted value
Check ext:UBLExtensions at //ext:UBLExtensions. The current value does not match the required format.
Apply the correct format
Missing sub-line VAT info. Each Sub Invoice Line (BG-DEX-01) must contain exactly one VAT information group (BG-DEX-06).
Update your export settings
If this occurs consistently, check your invoicing software's locale and format settings for XML export. Re-validate to confirm BR-DEX-03 is resolved.
Before / After
<Invoice> <!-- Issue: Each Sub Invoice Line (BG-DEX-01) must contain exactly one V --> </Invoice>
<Invoice> <!-- Issue resolved per XRechnung (Germany) --> </Invoice>
Technical Reference
//ext:UBLExtensionsCommon Causes
- ·Sub invoice line missing VAT information group
- ·BG-DEX-01 present without BG-DEX-06 tax category
- ·XRechnung extension sub-line has no tax classification
- ·Nested line item missing required tax information
- ·Export template missing sub-line VAT section
Seeing this in production? The API handles BR-DEX-03 automatically. See the fix response →
Frequently Asked Questions
Missing sub-line VAT info. Each Sub Invoice Line (BG-DEX-01) must contain exactly one VAT information group (BG-DEX-06).
Missing sub-line VAT info. Each Sub Invoice Line (BG-DEX-01) must contain exactly one VAT information group (BG-DEX-06). You can also use Invoice Navigator's compliance engine to correct this automatically in your pipeline.
Yes, BR-DEX-03 is a critical error that will cause invoice rejection. It must be fixed before submission.
Many instances of BR-DEX-03 can be automatically corrected using Invoice Navigator's compliance engine. The fix is applied in your pipeline with full audit evidence.
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Last updated: 14 April 2026
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