errorEN16931
UBL-SR-43:Scheme identifier shall only be used for invoiced object (document type code with value 130 or 50)
Your invoice uses a scheme identifier (schemeID attribute) on AdditionalDocumentReference/ID but the DocumentTypeCode is not 130 (invoiced object identifier) or 50 (price/sales catalogue reference). Scheme identifiers are only valid for these document types.
We can fix this automatically
AUTO-FIXAuto-fix: Remove the schemeID attribute from AdditionalDocumentReference/ID when DocumentTypeCode is not 130 or 50.
No manual changes needed
Upload and Fix NowWhy This Error Matters
Invoice will be rejected. The schemeID attribute on document references is only meaningful for invoiced objects and catalogue references.
Common Causes
- Generic document reference template adds schemeID to all references
- ERP export includes schemeID attribute on all document references
- Copy-paste from invoiced object reference to other reference types
- XML generation library adds schemeID by default
- Conversion from other format incorrectly mapped schemeID
Frequently Asked Questions
Your invoice uses a scheme identifier (schemeID attribute) on AdditionalDocumentReference/ID but the DocumentTypeCode is not 130 (invoiced object identifier) or 50 (price/sales catalogue reference). Scheme identifiers are only valid for these document types.
Your invoice uses a scheme identifier (schemeID attribute) on AdditionalDocumentReference/ID but the DocumentTypeCode is not 130 (invoiced object identifier) or 50 (price/sales catalogue reference). S You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, UBL-SR-43 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted.
Many instances of UBL-SR-43 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues.
See Also
Last updated: 16 January 2026
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