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Reference

Markdown export

BT-17 Tender or lot reference

Reference to the tender, lot, or procurement package connected to the invoice.

Quick answer

Invoice basics

Core document identifiers, dates, process identifiers, and high-level invoice context.

Quick actions

Validate XMLConvert invoice

In plain language

Reference to the tender, lot, or procurement package connected to the invoice.

Reference to the tender, lot, or procurement package connected to the invoice.

This is especially relevant in public procurement, framework agreements, and project contracts with lot structures.

What you usually enter here

Tender or lot identifier

Typical valid values include: LOT-04, TENDER-2026-17

Optional according to EN 16931-1.

What goes wrong often

Avoid values like: , AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Examples in context

This is especially relevant in public procurement, framework agreements, and project contracts with lot structures.

Optional according to EN 16931-1.

Valid Examples

  • LOT-04
  • TENDER-2026-17

Invalid Examples

  • AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

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-17

Data Type:

text

Cardinality:

0..1

Requirement:

Optional

Max Length:

50 characters

Since Version:

Optional

XML Implementation

UBL 2.1 Syntax
/Invoice/cac:OriginatorDocumentReference/cbc:ID
CII (UN/CEFACT) Syntax
/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeAgreement/ram:AdditionalReferencedDocument/ram:IssuerAssignedID

Next step

Create an XRechnung from your PDF

The converter reads the invoice and shows the fields it found before download, so you can check and correct the values. No PDF? Fill in the XRechnung directly in the form.

Convert invoiceFill in XRechnung in the form

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Why the standard cares about this field

Business Context

This is especially relevant in public procurement, framework agreements, and project contracts with lot structures.

Legal Requirement

Optional according to EN 16931-1.

Official sources and tools

KoSIT Validator
XRechnung Standard
Test Suite