BR-TMP-2:BT-124 "External document location" muss eine absolute URL mit gültigem...
Fix: Invoice Navigator automatically fixes this Invoice compliance issue by updating the relevant XML elements (BR-TMP-2). Upload your invoice to fix this automatically.
Invalid external document URL. The external document location (BT-124) must be an absolute URL with a valid scheme (http/https).
Engine Classification
Handle temporary internal validation rule
Confidence: 70% · Applied automatically in pipeline
What is BR-TMP-2?
BR-TMP-2 is a warning validation rule defined in the EN 16931 specification. It validates the temporary_element element in the UBL invoice XML.
The invoice may pass transmission, but this non-compliance can cause problems during tax audits or buyer-side processing.
Target path: //temporary_element
Why This Error Matters
Invoice will be rejected by German validators. External document references must use absolute URLs with valid schemes (http/https) to be accessible by receiving systems.
BR-TMP-2 is a soft failure that can cause issues at the receiving end — tax audits, ERP processing, or VAT reconciliation mismatches.
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
- ·Generates validation warning
- ·Error returned: BR-TMP-2
- ·Specification: EN 16931
How to Fix It
Find the incorrectly formatted value
Check temporary_element at //temporary_element. The current value does not match the required format.
Apply the correct format
Invoice Navigator automatically fixes this Invoice compliance issue by updating the relevant XML elements (BR-TMP-2).
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-TMP-2 is resolved.
Before / After
<Invoice> <!-- Issue: External document location must be an absolute URL with vali --> </Invoice>
<Invoice> <!-- Issue resolved per EN 16931 --> </Invoice>
Technical Reference
//temporary_elementCommon Causes
- ·External document URL is not absolute or has invalid scheme
- ·BT-124 must contain full URL with http:// or https://
- ·Relative path used instead of absolute URL
- ·URL scheme missing or not recognized
- ·External document reference format invalid
Seeing this in production? The API handles BR-TMP-2 automatically. See the fix response →
Frequently Asked Questions
Invalid external document URL. The external document location (BT-124) must be an absolute URL with a valid scheme (http/https).
Invoice Navigator automatically fixes this Invoice compliance issue by updating the relevant XML elements (BR-TMP-2). You can also use Invoice Navigator's compliance engine to correct this automatically in your pipeline.
BR-TMP-2 is a warning that may not always cause rejection, but indicates a compliance issue.
Many instances of BR-TMP-2 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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