Reference
Markdown exportBT-124 External Document Location
A URI where the supporting document can be accessed externally.
Quick answer
A URI where the supporting document can be accessed externally.
Taxes and totals
VAT treatment, tax breakdowns, and document totals that validators check closely.
Quick actions
In plain language
A URI where the supporting document can be accessed externally.
A URI where the supporting document can be accessed externally.
References evidence stored outside the invoice when embedding the document is not appropriate.
What you usually enter here
Resolvable URI
Typical valid values include: https://example.com/documents/delivery-note-1001.pdf
Optional EN 16931 mechanism for externally referenced supporting documents.
What goes wrong often
Avoid values like: delivery-note.pdf
Examples in context
References evidence stored outside the invoice when embedding the document is not appropriate.
Optional EN 16931 mechanism for externally referenced supporting documents.
Valid Examples
Use these points as the practical checks for this section.
- https://example.com/documents/delivery-note-1001.pdf
Invalid Examples
Use these points as the practical checks for this section.
- delivery-note.pdf
XML mapping and field facts
Open the technical reference if you need XML paths, validator rule codes, legal wording, or schema-specific mapping details.
Field ID:
BT-124
Data Type:
identifier
Cardinality:
0..1
Requirement:
Optional
Since Version:
Optional when a supporting document is referenced externally
XML Implementation
/Invoice/cac:AdditionalDocumentReference/cac:Attachment/cac:ExternalReference/cbc:URI/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeAgreement/ram:AdditionalReferencedDocument/ram:URIIDWhy the standard cares about this field
Business Context
References evidence stored outside the invoice when embedding the document is not appropriate.
Legal Requirement
Optional EN 16931 mechanism for externally referenced supporting documents.